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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 39924. Отображено 100.
05-04-2018 дата публикации

Устройство плавной регулировки сопла экструдера 3d-принтера, работающего по fdm-технологии

Номер: RU0000178502U1
Автор: Виталий Михайлович Федулов, Елизавета Евгеньевна Кулик
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева"

Предполагаемая полезная модель относится к оборудованию для изготовления 3D-прототипов деталей из различных полимерных материалов по FDM (Fused Deposition Modeling) технологии. Устройство плавной регулировки сопла экструдера 3D-принтера, работающего по FDM-технологии, включающее радиатор охлаждения, термобарьер, нагревательный блок, сопло, при этом радиатор охлаждения и термобарьер содержат скользящую посадку по цилиндрической поверхности с фиксацией стопорным винтом. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 178 502 U1 (51) МПК B29C 64/393 (2017.01) B29C 64/20 (2017.01) B41J 21/02 (2006.01) B33Y 30/00 (2015.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B29C 64/393 (2006.01); B29C 64/20 (2006.01); B41J 21/02 (2006.01); B33Y 30/00 (2006.01); B29C 64/10 (2006.01); B29C 64/40 (2006.01); B29C 64/379 (2006.01); B29C 64/118 (2006.01); B33Y 50/02 (2006.01) (21)(22) Заявка: 2017136470, 16.10.2017 16.10.2017 05.04.2018 Приоритет(ы): (22) Дата подачи заявки: 16.10.2017 (45) Опубликовано: 05.04.2018 Бюл. № 10 203945698 U, 19.11.2014. CN 104149352 A, 19.11.2014. CN 203945690 U, 19.11.2014. US 2014/0134335 A1, 15.05.2014. RU 171905 U1, 20.06.2017. RU 161249 U1, 10.04.2016. (54) УСТРОЙСТВО ПЛАВНОЙ РЕГУЛИРОВКИ СОПЛА ЭКСТРУДЕРА 3D-ПРИНТЕРА, РАБОТАЮЩЕГО ПО FDM-ТЕХНОЛОГИИ (57) Реферат: Предполагаемая полезная модель относится технологии, включающее радиатор охлаждения, к оборудованию для изготовления 3D-прототипов термобарьер, нагревательный блок, сопло, при деталей из различных полимерных материалов этом радиатор охлаждения и термобарьер по FDM (Fused Deposition Modeling) технологии. содержат скользящую посадку по цилиндрической Устройство плавной регулировки сопла поверхности с фиксацией стопорным винтом. экструдера 3D-принтера, работающего по FDM- R U 1 7 8 5 0 2 (56) Список документов, цитированных в отчете о поиске: WO 2015/038072 A1, 19.03.2015. CN Стр.: 1 U 1 U 1 Адрес для переписки: 152934, Ярославская обл., г. Рыбинск, ...

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Номер записи: 1
28-06-2021 дата публикации

УСТРОЙСТВО КОНТРОЛЯ АДДИТИВНОГО ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ

Номер: RU0000205100U1
Автор: Вишняков Геннадий Николаевич, Иванов Алексей Дмитриевич, Минаев Владимир Леонидович
Принадлежит: Федеральное государственное унитарное предприятие "ВСЕРОССИЙСКИЙ НАУЧНО-ИССЛЕДОВАТЕЛЬСКИЙ ИНСТИТУТ ОПТИКО-ФИЗИЧЕСКИХ ИЗМЕРЕНИЙ" (ФГУП "ВНИИОФИ")

Полезная модель относится к области аддитивного формирования изделий, а именно к устройствам контроля 3D-печати на основе голографических, интерферометрических измерений, структурированного света, а также фотограмметрии, и может быть использована для получения информации о форме объекта, его деформации, наличии внутренних подповерхностных дефектов заготовки и напряженных состояниях материала. Устройство контроля аддитивного изготовления детали содержит соединенные между собой осветительный блок в виде источника когерентного излучения с линзой, интерференционный блок и вычислительный блок. Интерференционный блок выполнен на основе интерферометра сдвига, содержащего наклонное и перемещаемое вдоль оптической оси зеркала. Вычислительный блок выполнен с возможностью расшифровки интерферограмм методом фазовых шагов и вычисления текущих значений внутренних напряжений в детали. Полезная модель позволяет повысить качество изготавливаемых деталей. 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 205 100 U1 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ QZ9K Государственная регистрация изменений, касающихся предоставления права использования по договору Вид договора: лицензионный Лицо(а), которому(ым) предоставлено право использования: Закрытое акционерное общество Производственная Компания "СтанкоПресс" (RU) Изменения: Включение данного патента в предмет договора на срок до 26.12.2024 Дата и номер государственной регистрации изменений, касающихся предоставления права использования: 15.12.2021 РД0382962 2 0 5 1 0 0 Лицо(а), предоставляющее(ие) право использования: Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт оптико-физических измерений" (RU) R U Дата и номер государственной регистрации предоставления права использования по договору, в которое внесены изменения: 30.06.2020 РД0335257 Дата внесения записи в Государственный реестр: 15.12.2021 U 1 2 0 5 1 0 0 R U Стр.: 1 U 1 Дата ...

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Номер записи: 2
19-01-2012 дата публикации

Method and apparatus associated with anisotropic shrink in sintered ceramic items

Номер: US20120015797A1
Автор: M. Eric Schlienger, Michael D. Baldwin, Michael Maguire, Nina Bergan French, Paul Withoy
Принадлежит: Individual

A manufacturing method for producing ceramic item from a photocurable ceramic filled material by stereolithography. The method compensates for the anisotropic shrinkage of the item during firing to produce a dimensionally accurate item.

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Номер записи: 3
26-01-2012 дата публикации

Three-Dimensional Parts Having Porous Protective Structures

Номер: US20120018926A1
Автор: Dominic F. Mannella, Robert L. Zinniel, S. Scott Crump
Принадлежит: Stratasys Inc

Three-dimensional parts having porous protective structures built with powder-based additive manufacturing systems, the porous protective structures being configured to protect the three-dimensional parts from damage during de-powdering processes.

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Номер записи: 4
01-03-2012 дата публикации

Architecture For Rendering Graphics On Output Devices Over Diverse Connections

Номер: US20120050300A1
Автор: II Thomas J. Purtel, Joshua Napoli, Won-Suk Chun
Принадлежит: Stragent LLC

A system for displaying graphical information. The system includes an asset server for storing information and a rendering server in communication with the asset server. The rendering server receives a graphics command and renders graphic display data in response to the graphics command and to the information. The rendering server is independently addressable from the asset server.

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Номер записи: 5
10-05-2012 дата публикации

Networked three-dimensional printing

Номер: US20120113473A1
Автор: Nathaniel B. Pettis
Принадлежит: Individual

Three-dimensional fabrication resources are improved by adding networking capabilities to three-dimensional printers and providing a variety of tools for networked use of three-dimensional printers. Web-based servers or the like can provide a single point of access for remote users to manage access to distributed content on one hand, and to manage use of distributed fabrication resources on the other.

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Номер записи: 6
06-09-2012 дата публикации

Single-Action Three-Dimensional Model Printing Methods

Номер: US20120224755A1
Автор: Andy Wu
Принадлежит: Individual

Methods and techniques of using 3D printers to create physical models from image data are discussed. Geometric representations of different physical models are described and complex data conversion processes that convert input image data into geometric representations compatible with third party 3D printers are disclosed. Printing templates are used to encapsulate complex geometric representations and complicated data conversion processes from users for fast and simple 3D physical model printing applications.

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Номер записи: 7
27-09-2012 дата публикации

Method for reducing differential shrinkage in sterolithography

Номер: US20120242007A1
Автор: Sam Coeck
Принадлежит: Materialise NV

The present invention relates to a new and improved stereolithography method and system for generating a three-dimensional object by forming successive, adjacent, cross-sectional laminae of that object, thereby providing an object being specially processed to reduce differential shrinkage.

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Номер записи: 8
11-10-2012 дата публикации

System and method for producing three-dimensional multi-layer objects from digital models

Номер: US20120255663A1
Автор: Ilya Baran, Jason Davis Lawrence, Michael Holroyd, Wojciech Matusik
Принадлежит: Disney Enterprises Inc

A set of two-dimensional layers is determined based on a digital three-dimensional model. An image corresponding to each of the layers is rendered on each of a corresponding number of sheets of at least partially transparent material. The sheets of material are assembled together to produce a three-dimensional structure corresponding to the digital model.

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Номер записи: 9
01-11-2012 дата публикации

Computer-aided Fabrication Of A Removable Dental Prosthesis

Номер: US20120277899A1
Автор: Andrew Youngho Chun, Angela Soyoung Chun, James Jiwen Chun, Jennifer Miseong Chun
Принадлежит: Hankookin Inc

A method and system for fabricating a dental prosthesis are provided. High resolution digital scanned images of a patient's oral structures are acquired. Three dimensional (3D) cone beam X-ray images of hard and soft oral tissues are acquired. The scanned images are integrated with the 3D cone beam X-ray images in a 3D space to obtain combined three dimensional images of the oral structures. The occlusal relationship between upper and lower oral structures are digitally simulated using the combined three dimensional images. The dental prosthesis is digitally modeled for planning intra-oral positioning and structure of the dental prosthesis. The digital dental prosthesis model is refined based on simulated force tests performed for assessing interference and retention of the digital dental prosthesis model. A prospective dental prosthesis model is created based on the refined digital dental prosthesis model. The dental prosthesis is fabricated based on a verified prospective dental prosthesis model.

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Номер записи: 10
06-12-2012 дата публикации

Patient-specific manufacturing of porous metal prostheses

Номер: US20120310364A1
Автор: Edward M. Willis, Jeffrey Bassett, JIA Li, Scott V. Cron
Принадлежит: Zimmer Inc

A patient-specific porous metal prosthesis and a method for manufacturing the same are provided. The orthopaedic prosthesis may be metallic to provide adequate strength and stability. Also, the orthopaedic prosthesis may be porous to promote bone ingrowth.

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Номер записи: 11
10-01-2013 дата публикации

Method and system for computer aided inventing

Номер: US20130013268A1
Автор: Andrew S. Marks, Scott Neumann, Tod M. Woolf
Принадлежит: IPIFINI Inc

Methods and systems are provided for a systematic approach to computer aided inventing. In a modeling environment, a model representing an item, composition or process can be defined and configured using the lexicon and specification of an innovation database. In the model, objects can be indentified, defined, and configured to provide the model with constituent products, components, features and materials. An innovation engine automatically applies one or more morphs from the innovation database to the objects or the model to generate morphed versions of the model that may provide innovations of, or invention to, the item, composition or process represented by the model.

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Номер записи: 12
14-02-2013 дата публикации

System and method for component material addition

Номер: US20130040074A1
Автор: Dave Keicher, Ed Tucker, Gregory Thomas Krause
Принадлежит: Individual

A system is disclosed for depositing material on a component. The system includes a deposition device operatively coupled to a fiber optic Nd:YAG laser. The deposition device includes a focusing prism that focuses the Nd:YAG laser at a focal area on a bladed disk, where the focal area on the bladed disk is between two blades of the disk. The system further includes an imaging means that views the focal area of the component. The imaging means and the fiber optic Nd:YAG laser each are positioned in a substantially similar optical relationship to the focal area on the bladed disk. The system further includes an additive material delivery means that delivers additive material to the component at the focal area on the component.

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Номер записи: 13
21-02-2013 дата публикации

Systems and Methods for Casting Hybrid Rocket Motor Fuel Grains

Номер: US20130042951A1
Автор: Jerome Keith Fuller
Принадлежит: Aerospace Corp

Embodiments of the invention relate to systems and methods for casting hybrid rocket motor fuel grains. In one embodiment, a method for casting a rocket motor fuel grain can be provided. The method can include providing a positive image of a port made from at least one material. The method can further include disposing at least one fuel material around at least a portion of the positive image of the port. Further, the method can include removing the at least one material, wherein a negative image of the port is formed in the at least one fuel material.

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Номер записи: 14
14-03-2013 дата публикации

Solid identification grid engine for calculating support material volumes, and methods of use

Номер: US20130066812A1
Автор: Amer E. Mouawad, Ziad A. Nehme
Принадлежит: Stratasys Inc

A method for calculating a support material volume, the method comprising generating a grid of cells for a tree data structure of a digital part, where the cells define a plurality of cell arrays, and pinging the cells of one of the cell arrays until a cell containing a subset of the tree data structure is reached or until each cell in the cell array is pinged, where if a cell containing the subset of the tree data structure is reached, then designating the reached cell and all remaining unpinged cells in the cell array as filled. The method also includes repeating the pinging step for each remaining cell array to determine a total filled volume, and subtracting a volume of the digital part from the total filled volume to determine a support material volume.

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Номер записи: 15
21-03-2013 дата публикации

Solid freeform fabrication using a plurality of modeling materials

Номер: US20130073068A1
Автор: Eduardo Napadensky
Принадлежит: Objet Ltd

A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.

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Номер записи: 16
06-06-2013 дата публикации

Real-time collaborative design platform

Номер: US20130144566A1
Автор: Kaustuv Kanti De Biswas
Принадлежит: Design Play Technologies Inc

A real-time collaborative design platform provides a hierarchical 3D model space as a plurality of nodes and branches. Each node may include at least one version of a sub-component and each version may include one or more attributes. The platform facilitates selecting a hierarchical tree from the 3D model space based, at least in part, upon at least one of the one or more attributes associated with sub-components. The platform also facilitates making the 3D model space accessible by multiple users over a network, such as the Internet. Also, each version of a sub-component is accessible in a library associated with the 3D model space.

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Номер записи: 17
04-07-2013 дата публикации

Method and device for arranging information that is linked in complex ways and for pathfinding in such information

Номер: US20130174074A1
Автор: Peter Strzygowski
Принадлежит: Individual

The invention concerns the field of displaying information, specifically the automated arrangement of displayed data that are linked in complex ways in limited display areas, e.g., computer screens, or in limited space for three-dimensional displays. Using the method, interlinked information (one-dimensional or multi-dimensional, directed and undirected graphs, finite multigraphs, and even “quivers”) can be displayed in the form of a navigable user interface through the special arrangement of the representatives standing for the information content, for example to display the relationships in social networks, genealogies, scientific work. The novelty resides in the method of the arrangement of the representatives of the information content, in the resulting arrangement and the resulting user interface for exploring content of said graphs. Representatives may be words or graphic symbols (areas, circles, etc.). The invention further enables small computers and devices like braille interfaces to display content of complex graphs.

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Номер записи: 18
01-08-2013 дата публикации

Total joint arthroplasty system

Номер: US20130197526A1
Автор: Ilwhan Park, John Schipper, Lacerial Pearson, Stephen M. Samuel
Принадлежит: Otismed Corp

A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (x n ,y n ,z n ) are determined for a selected sequence of bone surface locations using the CT image data. A mathematical model z=f(x,y) of a surface that accurately matches the bone surface coordinates at the selected bone spice locations, or matches surface normal vector components at selected bone surface locations, is determined. The model provides a production file from which a cutting jig and an implant device (optional), each patient-specific and having controllable alignment, are fabricated for the damaged bone by automated processing. At this point, the patient is cut open (once), the cutting jig and a cutting instrument are used to remove a selected portion of the bone and to provide an exposed planar surface, the implant device is optionally secured to and aligned with the remainder of the bone, and the patient's incision is promptly repaired.

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Номер записи: 19
12-09-2013 дата публикации

Secure Management of 3D Print Media

Номер: US20130235412A1
Автор: Christopher Buzz Baldwin, Jeffrey William Stevens, Timothy Alan Padilla
Принадлежит: Mercury 3D LLC

A system for printing 3D objects protects a 3D object file from being copied by separating the file into a series of instructions for printing the 3D object and sends those instructions piecemeal to a printing facility. The system enforces a methodology that forces the print facility to delete a previous set of instructions before the print facility can receive the next set of instructions to print a 3D object. By using such a system, the print facility never has the entire 3D print file in memory, preserving the rights of the creator of the 3D print file.

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Номер записи: 20
07-11-2013 дата публикации

Field Deployable Rapid Prototypable UXVs

Номер: US20130297062A1
Автор: Alberto Daniel Lacaze, Karl MURPHY
Принадлежит: Individual

A 3D printer that can use ABS-plus plastic material deployed in the battlefield for printing polycarbonate, or rubber components individually or in combination to create component parts comprised of two or more materials. A library of autonomous vehicles will be created utilizing the standard components and the 3D printer. These libraries will include a variety of light weight UGVS, fixed wings UAVS, quads rotors, hex-rotors, UGS, etc. The library will also include a variety of standard payloads that would be interchangeable from platform to platform. Each model in the library will provide the operator with a performance envelop of the printed system. A submission and approval process will be created for new devices. A common control architecture for controlling the devices will be forced on every model in the library.

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Номер записи: 21
07-11-2013 дата публикации

Rapid prototyping apparatus

Номер: US20130297063A1
Автор: Eduardo Napadensky, Eliahu M. Kritchman
Принадлежит: Stratasys Ltd

Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.

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Номер записи: 22
21-11-2013 дата публикации

Systems for manufacturing oral-based hearing aid appliances

Номер: US20130306230A1
Автор: Amir A. Abolfathi, Loc X. Phan
Принадлежит: Individual

Systems for manufacturing oral-based bearing aid appliances utilizing various manufacturing methods and apparatus are described herein. The oral appliance may have an electronic and/or transducer assembly for receiving incoming sounds and transmitting processed sounds via a vibrating transducer element coupled to a tooth or teeth. The oral appliance may be formed or fabricated via three-dimensional digital scanning systems or via impression molding to create a housing for the electronics and/or transducer assembly as well as to securely conform the appliance to the user's dentition.

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Номер записи: 23
23-01-2014 дата публикации

Single-Action Three-Dimensional Model Printing Methods

Номер: US20140025190A1
Автор: Andy Wu
Принадлежит: Individual

Methods and techniques of using 3D printers to create physical models from image data are discussed. Geometric representations of different physical models are described and complex data conversion processes that convert input image data into geometric representations compatible with third party 3D printers are disclosed. Printing templates are used to encapsulate complex geometric representations and complicated data conversion processes from users for fast and simple 3D physical model printing applications.

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Номер записи: 24
06-02-2014 дата публикации

Powder rapid prototyping apparatus and powder rapid prototyping method

Номер: US20140035205A1
Автор: Masahiro SASSA, Masashi Hagiwara
Принадлежит: Aspect Inc

A powder rapid prototyping apparatus includes a decompressable chamber, a thin layer forming section which supplies powder material from a powder material housing container provided in the chamber to form a thin layer of the powder material, an energy beam source for heating which outputs energy beam for heating which sinters or melts and models the thin layer of the powder material, and a control section which controls the modeling, wherein the control section exposes the powder material to the decompressed atmosphere before starting modeling, and houses the powder material in the powder material housing containers in a divided manner.

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Номер записи: 25
06-03-2014 дата публикации

System and method for producing three-dimensional multi-layer objects from digital models

Номер: US20140063558A1
Автор: Ilya Baran, Jason David Lawrence, Michael Holroyd, Wojciech Matusik
Принадлежит: Disney Enterprises Inc

A set of two-dimensional layers is determined based on a digital three-dimensional model. An image corresponding to each of the layers is rendered on each of a corresponding number of sheets of at least partially transparent material. The sheets of material are assembled together to produce a three-dimensional structure corresponding to the digital model.

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Номер записи: 26
13-03-2014 дата публикации

Three-dimensional surface texturing

Номер: US20140070445A1
Автор: Adam G. Mayer
Принадлежит: MakerBot Industries LLC

An additive three-dimensional fabrication process is improved by controlling deposition rate to obtain surface textures or other surface features below the nominal processing resolution of fabrication hardware. Sub-resolution information may be obtained, for example, from express metadata (such as for surface texture), or by interpolating data from a source digital model.

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Номер записи: 27
07-01-2016 дата публикации

Three-dimensional cooking machine

Номер: US20160000139A1
Автор: Chi-Feng Huang, Hao-Jan Mou, Ta-Wei Hsueh, Yung-Lung Han
Принадлежит: Microjet Technology Co Ltd

A three-dimensional cooking machine includes a control computer and a food ingredient laminating device. The control computer is used for previously storing an image file of a desired food model and outputting a control command corresponding to the image file of the food model. The food ingredient laminating device includes an ink-jet printer. The ink-jet printer is controlled to perform a three-dimensional food laminating operation according to the control command from the control computer.

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Номер записи: 28
06-01-2022 дата публикации

SYSTEMS AND METHODS FOR PROVIDING ORTHODONTIC ALIGNERS AND OTHER DENTAL APPLIANCES

Номер: US20220000583A1
Автор: CHERKAS Andrey, Dumothier Stephan Albert Alexandre, Kalinichenko Alexey, Kharpalev Ivan, Parpara Anatoliy, Shaw Jack, Velazquez Israel
Принадлежит:

A method for manufacturing an orthodontic aligner includes printing a mold associated with a dental arch of a patient based on a digital model of the mold, forming the orthodontic aligner over the mold, and trimming the orthodontic aligner. The method further includes assessing a quality of the orthodontic aligner by receiving a digital representation of the orthodontic aligner, the digital representation having been generated based on imaging of the orthodontic aligner, analyzing the digital representation of the orthodontic aligner to identify a quality-related property of the orthodontic aligner, determining, based on the quality-related property, that the orthodontic aligner comprises a manufacturing flaw, and classifying the orthodontic aligner as requiring further inspection by a technician based on determining that the orthodontic aligner comprises the manufacturing flaw. 1. A method of manufacturing an orthodontic aligner , the method comprising: printing a mold associated with a dental arch of a patient based on a digital model of the mold;', 'forming the orthodontic aligner over the mold; and', 'trimming the orthodontic aligner; and, 'manufacturing the orthodontic aligner, wherein manufacturing the orthodontic aligner comprises receiving, by a processor, a digital representation of the orthodontic aligner, the digital representation having been generated based on imaging of the orthodontic aligner;', 'analyzing, by the processor, the digital representation of the orthodontic aligner to identify a quality-related property of the orthodontic aligner;', 'determining, based on the quality-related property, that the orthodontic aligner comprises a manufacturing flaw; and', 'classifying, by the processor, the orthodontic aligner as requiring further inspection by a technician based on determining that the orthodontic aligner comprises the manufacturing flaw., 'assessing a quality of the orthodontic aligner, wherein assessing the quality of the orthodontic ...

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Номер записи: 29
02-01-2020 дата публикации

Osteotomy assistance kit and position detection program

Номер: US20200000479A1
Автор: Makoto Goto
Принадлежит: Individual

An osteotomy assistance kit includes a bone treatment assistance device and an attaching position confirmation device. The attaching position confirmation device includes a feature point indication rod to be applied via a tip portion to a feature point of the bone, a rod support unit that removably supports the feature point indication rod such that the tip portion is indicating the feature point of the bone, and a second support member that movably supports the rod support unit and indicates one of scales on the rod support unit. The bone treatment assistance device includes cutting slits, and first guide holes that guides first rods set to a predetermined positional relation. The second support member of the attaching position confirmation device is attached to the protrusion of the bone treatment assistance device.

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Номер записи: 30
04-01-2018 дата публикации

SYSTEMS AND METHODS FOR MANUFACTURING CUSTOM SURGICAL INSTRUMENTS

Номер: US20180000468A1
Автор: "ONeil Michael J.", Lomeli Roman, Sommerich Robert
Принадлежит: DePuy Synthes Products, Inc.

Systems and methods are disclosed in which customized instruments, e.g., surgical instruments, can be manufactured to provide improved ergonomics, comfort, and accuracy. Instruments can be customized based on various parameters, including a quantitative assessment of the user, desired or intended use of the instrument, user preferences, and so forth. Exemplary instrument properties which can be customized include size, geometry, durometer, mechanical assist, texture, color, markings, modulus of elasticity, sensor inclusion, sensor type, sensor feedback type, balance, finish, and weight. 1. A method for manufacturing a custom surgical instrument , comprising:receiving a data set representing one or more parameters of a user;generating, with a computer system, a custom instrument handle design based on the data set; andcontrolling a manufacturing system based on the generated instrument handle design to produce a custom surgical instrument handle.2. The method of claim 1 , further comprising generating the data set by capturing an image of the user using an imaging device and extracting anthropometric data from the captured image.3. The method of claim 2 , wherein the anthropometric data is anthropometric data of a hand of the user.4. The method of claim 2 , wherein the anthropometric data is derived from distances between anatomical landmarks of the user identified in the captured image.5. The method of claim 2 , wherein the anthropometric data comprises at least one of hand length claim 2 , mid finger length claim 2 , palm length claim 2 , palm width claim 2 , grip diameter claim 2 , and mid finger span.6. The method of claim 1 , wherein the data set includes force measurements of the user.7. The method of claim 6 , wherein the force measurements are indicative of at least one of the user's grip strength claim 6 , torque capability claim 6 , grip shape claim 6 , grip location claim 6 , and pressure point locations.8. The method of claim 6 , further comprising ...

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Номер записи: 31
07-01-2021 дата публикации

Preoperatively planning an arthroplasty procedure and generating a corresponding patient specific arthroplasty resection guide

Номер: US20210000511A1
Автор: Boris E. Shpungin, Elena I. Pavlovskaia, Ilwhan Park, Keun Song, Michael Santarella, Oleg Mishin
Принадлежит: Howmedica Osteonics Corp

A method of planning an arthroplasty procedure on a femur and tibia of a patient. The method includes receiving a first two-dimensional image of the femur and the tibia, and identifying, in the first two-dimensional image, a proximal femur feature, a distal tibia feature, and a bone contour. The method further includes running a transformation process to align a bone model representative of the femur and the tibia into a coordinate system with the first two-dimensional image, the bone model having a bone model contour that is aligned with the bone contour of the femur and the tibia in the first two-dimensional image. And the method further includes applying an implant model to the bone model in order to determine coordinate locations for the arthroplasty resection.

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Номер записи: 32
07-01-2016 дата публикации

RAPID PROTOTYPED TRANSFER TRAY FOR ORTHODONTIC APPLIANCES

Номер: US20160000529A1
Автор: Kim Sung, Raby Richard E.
Принадлежит:

The present invention is directed to computer-implemented methods of making a transfer tray using rapid prototyping techniques, where the gingival edge of the tray is defined to intersect with at least one receptacle for receiving an orthodontic appliance. This tray configuration helps to minimize the travel distance of the tray when placing the tray over a patient's teeth, while also preserving a high degree of mechanical retention for retaining the appliance until such time that the appliance is bonded to the tooth. Other aspects of the tray and associated methods of bonding are directed to a frangible web that extends over the gingival portion of the receptacle and fractures to facilitate tray removal after bonding. 1. A method of making a transfer tray for bonding an orthodontic appliance comprising:obtaining a virtual model of a patient's dental structure;determining a desired location for one or more virtual orthodontic appliances on the model;providing a virtual receptacle at the desired location for each appliance of the one or more virtual orthodontic appliances, wherein each virtual receptacle has a configuration that matches at least a portion of the corresponding virtual orthodontic appliance;deriving a virtual tray body extending across at least a portion of the model and at least a portion of each virtual receptacle remote from the model, wherein the act of deriving a virtual tray body includes the act of trimming the tray to create a gingival edge of the tray body that intersects each virtual receptacle; andforming the transfer tray, wherein the transfer tray includes a physical tray body and one or more physical receptacles that correspond to the virtual tray body and virtual receptacles respectively, each physical receptacle sufficient to releasably retain a physical orthodontic appliance corresponding to the virtual appliance,whereby when the physical appliance is retained in the physical receptacle, such appliance will include first facially ...

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Номер записи: 33
07-01-2021 дата публикации

APPARATUS AND METHODS WITH SURGICAL GUIDES HAVING ROUTED LIQUID COOLANT IRRIGATION

Номер: US20210000568A1
Автор: Evans Zachary, Renne Walter
Принадлежит:

Provided herein are surgical guides with internal channels for irrigation cooling. In one embodiment, an apparatus for guiding a surgical instrument includes a proximal side and a distal side. A first channel is configured to guide a material removal device, where the first channel extends from the proximal side of the apparatus to the distal side of the apparatus. A second channel configured to direct irrigation fluid, where the second channel extends from the proximal side of the of the apparatus to the distal side of the apparatus. The first channel is separate from the second channel. A method of performing a surgical procedure and a method of manufacturing a surgical guide are also disclosed. In certain embodiments, the surgical guides may be manufactured via additive manufacturing processes, including for example, three-dimensional printing processes. 121-. (canceled)22. A method of manufacturing a surgical guide , the method comprising:determining a plurality of parameters for a guide channel in a surgical guide, wherein the guide channel is configured to guide a material removal device;determining a plurality of parameters for an irrigation channel, wherein the irrigation channel is configured to direct irrigation through the surgical guide; andforming the surgical guide with the guide channel and the irrigation channel, wherein the irrigation channel is separate from the guide channel.23. The method of wherein forming the surgical guide comprises an additive manufacturing (AM) process.24. The method of wherein forming the surgical guide comprises a three-dimensional (3D) printing process.25. The method of wherein the plurality of parameters for an irrigation channel comprises a location for a coupling mechanism to couple the irrigation channel to a source of irrigation fluid.26. The method of wherein the location for the coupling mechanism is manually selected by a user.27. The method of wherein the plurality of parameters for the irrigation channel ...

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Номер записи: 34
06-01-2022 дата публикации

LAYER-BASED DEFECT DETECTION USING NORMALIZED SENSOR DATA

Номер: US20220001497A1
Автор: Cola Mark J., Dave Vivek R.
Принадлежит: Sigma Labs, Inc.

The disclosed embodiments relate to the monitoring and control of additive manufacturing. In particular, a method is shown for removing errors inherent in thermal measurement equipment so that the presence of errors in a product build operation can be identified and acted upon with greater precision. Instead of monitoring a grid of discrete locations on the build plane with a temperature sensor, the intensity, duration and in some cases position of each scan is recorded in order to characterize one or more build operations. 1. (canceled)2. A method comprising:generating an energy beam;directing the energy beam across a work piece along a plurality of scan lines to fuse a layer of powder to the work piece, wherein each scan line of the plurality of scan lines includes a respective scan length;acquiring data from an optical sensor arranged to receive optical emissions from the layer while the energy beam is directed across the work piece; andgenerating, using the acquired data, a baseline characteristic curve of a variation of optical emission intensity for the plurality of scan lines.3. The method of wherein a unique baseline characteristic curve is generated for each respective layer that is fused to the work piece.4. The method of further comprising comparing the baseline characteristic curve to a characteristic curve of a same layer of a different work piece to detect a defect in the different work piece.5. The method of wherein the baseline characteristic curve is corrected for a variation in the scan length of each of the plurality of scan lines.6. The method of wherein the baseline characteristic curve is corrected for a variation in a distance between the optical sensor and each respective scan line.7. The method of wherein the data comprises an intensity of the optical emissions from the layer for each scan line of the plurality of scan lines.8. The method of wherein the data from the optical sensor indicates a temperature at the layer.9. The method of ...

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Номер записи: 35
06-01-2022 дата публикации

METHOD AND APPARATUS FOR CONTINUOUS COMPOSITE THREE-DIMENSIONAL PRINTING

Номер: US20220001606A1
Автор: Tyler Kenneth Lyle
Принадлежит: Continuous Composites Inc.

A method and apparatus for the additive manufacturing of three-dimensional objects are disclosed. Two or more materials are extruded simultaneously as a composite, with at least one material in liquid form and at least one material in a solid continuous strand completely encased within the liquid material. A means of curing the liquid material after extrusion hardens the composite. A part is constructed using a series of extruded composite paths. The strand material within the composite contains specific chemical, mechanical, or electrical characteristics that instill the object with enhanced capabilities not possible with only one material. 1. An apparatus for additive manufacturing of a three-dimensional object , comprising:a nozzle configured to emit a fiber together with a polymer;a feeder configured to feed the fiber to the nozzle;a device configured to harden the polymer;a mechanical apparatus configured to move the nozzle during emitting to form the three-dimensional object from the fiber and the polymer; anda control unit programmed to cause the mechanical apparatus to move the nozzle at a rate faster than a rate at which the feeder feeds the fiber to the nozzle during emitting.2. The apparatus of claim 1 , wherein moving the nozzle at the faster rate generates tension within the fiber.3. The apparatus of claim 1 , wherein moving the nozzle at the faster rate causes the fiber to be pulled from the nozzle.4. The apparatus of claim 1 , wherein the device is configured to create an environment that causes the polymer to harden.5. The apparatus of claim 4 , wherein the device is configured to regulate a temperature of the environment.6. The apparatus of claim 1 , wherein the device is configured to harden the polymer at a location outside of the nozzle.7. The apparatus of claim 1 , wherein the nozzle is configured to create an environment that maintains the polymer as a liquid inside of the nozzle.8. The apparatus of claim 1 , wherein the polymer is a ...

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Номер записи: 36
06-01-2022 дата публикации

Additive manufacturing method and system

Номер: US20220001614A1
Автор: Georg Fey
Принадлежит: AMCM GmbH

The invention relates to a method for the additive manufacturing of at least one three-dimensional object (1) by means of a system comprising a coating unit (40) and at least two irradiation units (50), the irradiation areas of which partially overlap or are adjacent to each other, wherein the irradiation areas are adapted so that a total irradiation period for selectively solidifying one or more layers of applied build-up material (30) is minimised as required. The invention further relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium.

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Номер записи: 37
07-01-2021 дата публикации

Laser-solid-forming manufacturing device and method

Номер: US20210001400A1
Автор: Chaoyue CHEN, JIANG Wang, Jianwen NIE, Ruixin ZHAO, WEI Liu, Zhongming Ren
Принадлежит: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY

A laser-solid-forming manufacturing device includes a laser emitter, a magnetic field generator, and a forming platform. The laser emitter emits a laser beam which acts on a feedstock to form a molten pool. The magnetic field generator includes a spiral copper coil, a first electrode and a second electrode. The spiral copper coil is formed by spirally winding a copper tube. The first and second electrodes are arranged at respective ends of the copper tube and are used for loading a voltage to generate a magnetic field in the spiral copper coil. At any time, the spiral copper coil sleeves an action point of the laser beam and the feedstock. A corresponding laser-solid-forming manufacturing method is also presented.

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Номер записи: 38
01-01-2015 дата публикации

Method for building and using three-dimensional objects containing embedded identification-tag inserts

Номер: US20150001750A1
Автор: David M. Kozlak, J. Samuel Batchelder, Steven A. Chillscyzn
Принадлежит: Stratasys Inc

A method for building a three-dimensional object containing an identification-tag insert, the method comprising performing a build operation to form layers of the three-dimensional object using a layer-based additive technique, placing the identification-tag insert on at least a portion of the layers during the build operation, and reading information from the identification-tag insert.

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Номер записи: 39
07-01-2021 дата публикации

Three-dimensional printing

Номер: US20210001401A1
Автор: David A Champion, James Mckinnell, Mohammed S Shaarawi, Vladek Kasperchik
Принадлежит: Hewlett Packard Development Co LP

In an example of a method for three-dimensional (3D) printing, build material layers are patterned to form an intermediate structure. During patterning, a binding agent is selectively applied to define a patterned intermediate part. Also during patterning, i) the binding agent and a separate agent including a gas precursor are, or ii) a combined agent including a binder and the gas precursor is, selectively applied to define a build material support structure adjacent to at least a portion of the patterned intermediate part. The intermediate structure is heated to a temperature that activates the gas precursor to create gas pockets in the build material support structure.

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Номер записи: 40
07-01-2021 дата публикации

PROCESSING SYSTEM, PROCESSING METHOD, COMPUTER PROGRAM, RECORDING MEDIUM AND CONTROL APPARATUS

Номер: US20210001403A1
Автор: KAWAI Hidemi
Принадлежит: NIKON CORPORATION

A processing system is provided with: a support apparatus that is configured to support a processing target; a processing apparatus that performs an additive processing by irradiating a processed area on the processing target with an energy beam and by supplying materials to an area that is irradiated with the energy beam; and a position change apparatus that changes a positional relationship between the support apparatus and an irradiation area of the energy beam from the processing apparatus, wherein the processing system forms a fiducial build object by performing the additive processing on at least one of a first area that is a part of the support apparatus and a second area that is a part of the processing target, and the processing system controls at least one of the processing apparatus and the position change apparatus by using an information relating to the fiducial build object. 1. A processing system comprising:a support apparatus that is configured to support a processing target;a processing apparatus that performs a processing by irradiating a processed area on the processing target with an energy beam;a position change apparatus that changes a relative positional relationship between the support apparatus and an irradiation area of the energy beam; anda control apparatus that controls the position change apparatus on the basis of a position information of a reference that is formed by performing the processing on at least one of the support apparatus and the processing target by the processing apparatus.2. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between the processing target and the reference.3. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between a part of the processing target ...

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Номер записи: 41
07-01-2021 дата публикации

STANDOFF DISTANCE MONITORING AND CONTROL FOR DIRECTED ENERGY DEPOSITION ADDITIVE MANUFACTURING SYSTEMS

Номер: US20210001424A1
Автор: Burla Avinash, Forbord Jon, Rezapour Ehsan
Принадлежит: NORSK TITANIUM AS

Additive manufacturing systems with standoff distance monitoring and control, which can be responsive, dynamic, and in real-time. These technologies can use a standoff distance measurement system to real-time monitor, read, or interrogate a workpiece or a substrate on which the workpiece is positioned, as the workpiece is moved past a directed energy source, or vice versa. These technologies can use a feedback controller to responsively and dynamically control the standoff distance in real-time based on data from the standoff distance measurement system. 1. A directed energy deposition additive manufacturing system comprising:a logic, a standoff distance measurement unit, a substrate, a torch, a feed unit, a material, and a mover, wherein logic causes the feed unit to output the material and the torch to output a plasma such that the plasma melts the material onto the substrate and a workpiece is thereby additively manufactured on the substrate, wherein the workpiece has a geometric profile, wherein the torch is vertically spaced apart from the workpiece such that a standoff distance is defined, wherein the logic causes the standoff distance measurement unit to monitor the geometric profile while the workpiece is being additively manufactured such that the logic causes the mover to move at least one of the torch relative to the substrate or the substrate relative to the torch in order to maintain the standoff distance.2. The directed energy deposition additive manufacturing system of claim 1 , wherein the standoff distance measurement unit includes a laser source and a camera claim 1 , wherein the logic causes the laser source to output a laser pattern onto the geometric profile such that a plurality of reflections are generated claim 1 , wherein the logic causes the camera to read the reflections claim 1 , wherein the standoff distance measurement unit monitors the geometric profile based on the reflections.3. The directed energy deposition additive manufacturing ...

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Номер записи: 42
07-01-2021 дата публикации

IRRADIATION DEVICE, METAL SHAPING DEVICE, METAL SHAPING SYSTEM, IRRADIATION METHOD, AND METHOD FOR MANUFACTURING METAL SHAPED OBJECT

Номер: US20210001428A1
Автор: KASHIWAGI Masahiro, Kusaka Hiroyuki
Принадлежит: FUJIKURA LTD.

The present invention causes residual stress, which may be generated in a metal shaped object (MO), to be small. A metal shaping device includes an irradiation device (A). The irradiation device (A), which is configured to irradiate a powder bed (PB) containing a metal powder with laser light (L), is able to be switched between (i) a focused state in which a beam spot diameter (D) of laser light (L) on a surface of the powder bed (PB) has a first value and (ii) a defocused state in which the beam spot diameter (D) of the laser light (L) on the surface of the powder bed (PB) has a second value which is larger than the first value. 1. An irradiation device for use in metal shaping , comprising:an irradiating section configured to irradiate, with laser light, a powder bed containing a metal powder,the irradiating section being able to be switched between (i) a focused state in which a beam spot diameter of the laser light on a surface of the powder bed has a first value and (ii) a defocused state in which the beam spot diameter of the laser light on the surface of the powder bed has a second value which is larger than the first value.2. The irradiation device according to claim 1 , wherein:when the irradiating section is in the focused state, a temperature of a region of the surface of the powder bed, which region is irradiated with the laser light, is not less than a melting point of the metal powder; andwhen the irradiating section is in the defocused state, the temperature of the region of the surface of the powder bed, which region is irradiated with the laser light, is 0.5 times to 0.8 times as high as the melting point of the metal powder.3. The irradiation device according to claim 1 , whereinthe irradiating section is configured to be transitioned from the focused state to the defocused state or transitioned from the defocused state to the focused state, while a position of an irradiation point irradiated with the laser light on the surface of the powder bed is ...

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Номер записи: 43
07-01-2021 дата публикации

Printing a multi-structured 3d object

Номер: US20210001545A1
Автор: Hou T. Ng, Lihua Zhao, YAN Zhao
Принадлежит: Hewlett Packard Development Co LP

In an example implementation, a method of printing a multi-structured three-dimensional (3D) object includes forming a layer of sinterable material. The method includes processing a first portion of the sinterable material using a first set of processing parameters and processing a second portion of the sinterable material using a second set of processing parameters. The processed first and second portions form, respectively, parts of a first and second structure of a multi-structured 3D object.

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Номер записи: 44
07-01-2021 дата публикации

THREE-DIMENSIONAL SHAPED OBJECT MANUFACTURING DEVICE

Номер: US20210001547A1
Автор: OKAMOTO Eiji, TSUNOYA Akihiko
Принадлежит:

A three-dimensional shaped object manufacturing device includes a shaping table, layer forming portions configured to form a powder layer on the shaping table, a head configured to discharge, from a nozzle, a liquid containing a binder to a shaping region of a three-dimensional shaped object in the powder layer, and a control unit configured to control a movement of the head with respect to the shaping table and a drive of the head by applying a voltage, in which the control unit performs control to, after the liquid is discharged to the shaping region, execute a flushing operation of discharging the liquid from the nozzle to a flushing position different from the shaping region, and set an applied voltage during the flushing operation higher than an applied voltage when the liquid is discharged to the shaping region. 1. A three-dimensional shaped object manufacturing device , comprising:a shaping table;a layer forming portion configured to form a powder layer on the shaping table;a head configured to discharge, from a nozzle, a liquid containing a binder to a shaping region of a three-dimensional shaped object in the powder layer; anda control unit configured to control a movement of the head with respect to the shaping table and a drive of the head by applying a voltage, wherein after the liquid is discharged to the shaping region, execute a flushing operation of discharging the liquid from the nozzle to a flushing position different from the shaping region, and', 'set an applied voltage during the flushing operation higher than an applied voltage when the liquid is discharged to the shaping region., 'the control unit performs control to,'}2. A three-dimensional shaped object manufacturing device , comprising:a shaping table;a layer forming portion configured to form a powder layer on the shaping table;a head configured to discharge, from a nozzle, a liquid containing a binder to a shaping region of a three-dimensional shaped object in the powder layer; anda ...

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Номер записи: 45
05-01-2017 дата публикации

Powder bed fusion apparatus

Номер: US20170001243A1
Автор: Seiji Hayano
Принадлежит: Aspect Inc

A powder bed fusion apparatus has an energy beam emitting section for outputting an energy beam, a thin layer forming section for forming a thin layer of a powder material, preliminary heating means for pre-heating the thin layer of the powder material, and control means for controlling modeling, wherein the control means performs forming the thin layer of the powder material, pre-heating the thin layer of the powder material, and modeling based on slice data, in which irradiation of the energy beam is started from the central region of the thin layer, and sequentially moved to a peripheral region of the thin layer.

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Номер записи: 46
07-01-2021 дата публикации

3D Modeling Device And 3D Modeling Method

Номер: US20210001550A1
Автор: MIZUKAMI Shunsuke, NAKAMURA Kazuhide, Saito Koichi, YUWAKI Kohei
Принадлежит: SEIKO EPSON CORPORATION

A 3D modeling device that forms a 3D object includes: a stage; a nozzle through which a fused material is ejected; a build plate disposed on the stage, the build plate receiving the fused material ejected through the nozzle to build the 3D object on the build plate; and a plasticizing member configured to plasticize a thermoplastic material to form the fused material. The plasticizing member includes: a flat screw having a grooved surface in which a groove is provided, the groove extending in a helical shape; a screw-facing piece having a communication path and a screw-facing surface facing the grooved surface; and a drive motor configured to rotate the flat screw. The groove continuously helically extends toward a material inlet from which the thermoplastic material in solid form is supplied, and the material inlet is provided on a side face of the flat screw. 1. A 3D modeling device that forms a 3D object , the 3D modeling device comprising:a stage;a nozzle through which a fused material is ejected;a build plate disposed on the stage, the build plate receiving the fused material ejected through the nozzle to build the 3D object on the build plate; and a flat screw having a grooved surface in which a groove is provided, the groove extending in a helical shape;', 'a screw-facing piece having a communication path and a screw-facing surface facing the grooved surface; and, 'a plasticizing member configured to plasticize a thermoplastic material to form the fused material, the plasticizing member includinga drive motor configured to rotate the flat screw,wherein the groove continuously helically extends toward a material inlet from which the thermoplastic material in solid form is supplied, and the material inlet is provided on a side face of the flat screw.2. The 3D modeling device according to claim 1 , wherein a height of the flat screw is smaller than a diameter of the flat screw.3. The 3D modeling device according to claim 1 , further comprising:a material supply ...

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Номер записи: 47
07-01-2021 дата публикации

COMPACT BUILD TANK FOR AN ADDITIVE MANUFACTURING APPARATUS

Номер: US20210001551A1
Автор: Karlsson Kristofer
Принадлежит: ARCAM AB

Described is an additive manufacturing apparatus that includes a telescopic build tank operatively connected at opposing ends to a powder table and a build table. The telescopic build tank includes at least two segments telescopically coupled to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments. The set of engagement pins is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and each engagement groove comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede separation of the at least two segments relative to one another. 1. An additive manufacturing apparatus for forming a three-dimensional article layer by layer from a powder , the additive manufacturing apparatus comprising:a powder table;a build table; anda telescopic build tank operatively connected at one end to the powder table and at an opposing other end a portion of the build table, the telescopic build tank comprising at least two segments telescopically coupled relative to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments, the set of engagement pins of one of the at least two segments is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and', 'each engagement groove of the set of engagement grooves comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede further translation of a ...

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Номер записи: 48
07-01-2021 дата публикации

SYSTEMS AND METHODS FOR ADDITIVE MANUFACTURING

Номер: US20210001552A1
Автор: Evans Nick Shadbeh, Harrison Samuel F., Torres Faraón, Wilenski Mark Stewart
Принадлежит:

A system for additively manufacturing an object comprises a source of a feedstock line, a rigidizing mechanism that receives the feedstock line from the source and transforms the resin from a first at least partially uncured state to a rigid at least partially uncured state, a delivery guide that deposits the feedstock line along a print path, a feed mechanism that feeds the feedstock line through the delivery guide, a de-rigidizing mechanism that transforms the resin from the rigid at least partially uncured state to a second at least partially uncured state, and a curing mechanism that transforms the resin from the second at least partially uncured state to an at least partially cured state. 1300102300. A system () for additively manufacturing an object () , the system () comprising:{'b': 302', '106', '106', '302', '108', '110, 'a source () of a feedstock line (), wherein the feedstock line (), originating from the source (), comprises elongate fibers (), at least partially encapsulated in a resin () in a first at least partially uncured state;'}{'b': 112', '106', '302', '110', '106', '112', '110', '106', '106', '110', '110', '110, 'a rigidizing mechanism () to receive the feedstock line () from the source () with the resin () of the feedstock line () in the first at least partially uncured state, wherein the rigidizing mechanism () is configured to transform the resin () of the feedstock line () from the first at least partially uncured state to a rigid at least partially uncured state, and wherein the feedstock line () and the resin () are more rigid when the resin () is in the rigid at least partially uncured state than when the resin () is in the first at least partially uncured state;'}{'b': 116', '106', '112', '110', '116', '106', '114, 'a delivery guide () to receive the feedstock line () from the rigidizing mechanism () with the resin () in the rigid at least partially uncured state, wherein the delivery guide () is configured to deposit the feedstock line ...

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Номер записи: 49
07-01-2021 дата публикации

Three-Dimensional Printing System with Multi-Fluid Servicing Module

Номер: US20210001554A1
Автор: Esplin Ernest I., Reid Jacob C.
Принадлежит:

A three-dimensional printing system includes a printhead having an ejection face with nozzles for ejecting different printing fluids, a movement mechanism coupled to the printhead, a fluid supply coupled to the printhead, a maintenance module, and a controller. The maintenance module includes a purge platform, a wiper, and a spittoon. The controller is configured to: (a) receive a new print job; (b) activate the movement mechanism to position the ejection face over the purge platform; (c) activate the fluid supply to at least partially fill a space between the ejection face and the purge platform with fluid; (d) activate the movement mechanism to translate the ejection face over the wiper to remove excess fluid; (e) activate the movement mechanism to position the ejection face over the spittoon; (f) activate the plurality of nozzles to eject drops into the spittoon until the received mixture is expelled from the nozzles. 1. A three-dimensional printing system comprising:a printhead having an ejection face with a plurality of nozzles for ejecting a plurality of different printing fluids;a movement mechanism coupled to the printhead;a fluid supply containing the plurality of different printing fluids coupled to the printhead; a purge platform;', 'a wiper; and', 'a spittoon; and, 'a maintenance module including (a) receive a new print job;', '(b) activate the movement mechanism to position the ejection face over the purge platform;', '(c) activate the fluid supply to flood a space between the ejection face and the purge platform with fluid, the nozzles receive a mixture of the different printing fluids;', '(d) activate the movement mechanism to translate the ejection face over the wiper to remove excess fluid;', '(e) activate the movement mechanism to position the ejection face over the spittoon; and', '(f) activate the plurality of nozzles to eject drops into the spittoon until the received mixture is expelled from the nozzles., 'a controller configured to2. The three ...

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Номер записи: 50
07-01-2021 дата публикации

Three-Dimensional Printing System with High Capacity Servicing Module

Номер: US20210001555A1
Автор: Esplin Ernest I., Reid Jacob C.
Принадлежит:

A three dimensional printer includes a printhead, a movement mechanism coupled to the printhead, a maintenance module, and a controller. The printhead includes an ejection face with a plurality of nozzles for ejecting droplets of printing fluid. The maintenance module includes a maintenance tray and an effluent tray. The maintenance tray has a lateral periphery and an upper side including a storage cap, a wiper, and a spittoon. The effluent tray has a lateral periphery, underlies the maintenance tray, and receives accumulated fluid from the maintenance tray. The periphery of the maintenance tray and the periphery of the effluent tray interengage when the maintenance tray is removably mounted over the effluent tray. The controller is configured to operate the printhead, the maintenance module, and the movement mechanism to provide printing and printhead maintenance. 1. A three-dimensional printing system comprising:a printhead including an ejection face with a plurality of nozzles for ejecting droplets of printing fluid;a movement mechanism coupled to the printhead; a maintenance tray having a lateral periphery and an upper side including a storage cap, a wiper, and a spittoon; and', 'an effluent tray having a lateral periphery and underlying the maintenance tray, the effluent tray receiving accumulated fluid from the maintenance tray;', 'the periphery of the maintenance tray and the periphery of the effluent tray interengage when the maintenance tray is removably mounted over the effluent tray; and, 'a maintenance module for maintaining the printhead including operate the printhead and the maintenance module to prepare the printhead for printing;', 'operate the movement mechanism and the printhead to dispense layers of fluid; and', 'operate the movement mechanism and the maintenance module to engage the cap against the ejection face after printing., 'a controller configured to2. The three-dimensional printing system of wherein the periphery of the maintenance tray ...

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Номер записи: 51
05-01-2017 дата публикации

METHOD AND ARRANGEMENT FOR BUILDING METALLIC OBJECTS BY SOLID FREEFORM FABRICATION

Номер: US20170001253A1
Автор: Stempfer Ferdinand
Принадлежит:

This invention relates to a method and arrangement for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by supplying the metallic feed material in the form of a wire and employing two gas transferred arcs, one plasma transferred arc for heating the deposition area on the base material and one plasma transferred arc for heating and melting the feed wire. 1. A system for building metallic objects by solid freeform fabrication , comprising:a first PTA torch electrically connected to a base material and a second PTA torch electrically connected to a feed wire; anda control system to control the first and second torches, and the feed wire to form an object by fusing successive deposits of a metallic material onto the base material.2. The system of claim 1 , wherein the electrical connection between the first PTA torch and the base material is achieved by a first power source claim 1 , and the electrical connection between the second PTA torch and the feed wire is achieved by a second power source.3. The system of claim 2 , wherein the first and second power sources are direct current.4. The system of claim 3 , wherein the first and second direct current power sources include independent controls.5. The system of claim 1 , wherein the first PTA torch preheats the base material at a position at which the metallic material is to be deposited.6. The system of claim 1 , wherein the second PTA torch melts the feed wire.7. The system of claim 1 , wherein at least one of the first and second PTA torches includes arc deflection control.8. The system of claim 1 , wherein the first PTA torch is a gas tungsten arc welding torch.9. The system of claim 1 , wherein at least one of first and second PTA torches is a gas metal arc welding torch.10. The system of claim 1 , further comprising an electrical connection between the second PTA torch and the base material.11. The system of claim 10 , ...

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Номер записи: 52
07-01-2021 дата публикации

Method for Producing Three-Dimensional Shaped Product

Номер: US20210001557A1
Автор: Amaya Koichi, Nishikawa Akishige, Takizawa Akira, Tomita Seiichi, Yoshida Mitsuyoshi
Принадлежит:

A method for producing a three-dimensional shaped product that employs a shaping method based on dispersion of powder by a squeegee and irradiation onto a powder layer with a laser beam or electron beam, includes the following steps: 1. Setting an upper limit value and lower limit value for the amount of circulation passing through an anemometer, and an adjusting value within this range; 2. Measuring the amount of circulation and effecting control as follows: (1) When the measured value is between the upper limit value and lower limit value, the rotational speed of the blower fan is maintained, and (2) When the measured value has fallen below the lower limit value due to clogging of a filter, the rotational speed of the fan is increased and the rotational speed is selected at the stage where the measured value has reached the adjusting value, and the rotational speed is maintained. 1. A method for producing a three-dimensional shaped product which employs a forming step in a shaping region , based on dispersion of powder by a squeegee on a shaping table disposed within a chamber and irradiation onto powder layers formed by the dispersion with a laser beam or electron beam , wherein a filter that removes fumes generated from the powder layers due to the irradiation in a fume collector that traps the fumes , a blower that circulates inert gas-containing gas inside and outside the chamber , and an anemometer that communicates with the blower are installed , and the method including the step of controlling the amount of circulation of gas per unit time being circulated inside and outside the chamber by the following steps:1. setting an upper limit value and a lower limit value for the amount of circulation of gas per unit time passing through the anemometer, and2. setting an adjusting value within the range between the upper limit value and the lower limit value,3. selecting, at the start of gas circulation, a numerical value for the rotational speed of a fan of a ...

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Номер записи: 53
07-01-2021 дата публикации

THREE-DIMENSIONAL SHAPED OBJECT MANUFACTURING DEVICE

Номер: US20210001558A1
Автор: OKAMOTO Eiji, TSUNOYA Akihiko
Принадлежит:

In a three-dimensional shaped object manufacturing device, when a unit is moved in a forward direction, powder is supplied from a first supply portion, a powder layer is formed by a first layer forming portion, a liquid is discharged to a shaping region from a head, and a second layer forming portion is moved in a direction separating from a shaping table before the second layer forming portion faces the shaping region, and when the unit is moved in a backward direction, the powder is supplied from a second supply portion, the powder layer is formed by the second layer forming portion, the liquid is discharged to the shaping region P from the head, and a first layer forming portion is moved in a direction separating from the shaping table before the first layer forming portion faces the shaping region. 1. A three-dimensional shaped object manufacturing device , comprising:a shaping table;a unit configured to reciprocate with respect to the shaping table and including a first supply portion and a second supply portion configured to supply powder, a first layer forming portion and a second layer forming portion configured to form a powder layer on the shaping table using the powder, and at least one head configured to discharge a liquid containing a binder to a shaping region of the three-dimensional shaped object on the powder layer;a layer forming and moving portion configured to move the first layer forming portion and the second layer forming portion in an approaching or separating direction that is a direction approaching or separating from the shaping table; anda control unit configured to control the layer forming and moving portion, the unit, and the shaping table, whereinthe unit includes the first supply portion, the first layer forming portion, the head, the second layer forming portion, and the second supply portion in an order from a head side in a forward direction in a reciprocating direction of the unit, and when moving the unit in the forward ...

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Номер записи: 54
07-01-2021 дата публикации

IMPACT MITIGATING STRUCTURE

Номер: US20210001560A1
Автор: COOK James E.T., JERUSALEM Antoine, SIVIOUR Clive
Принадлежит:

A method of designing an impact mitigating structure. The method determines the force exerted by an object on the structure () as a function of the distance by which the object displaces a surface of the structure during impact. The method calculates a ratio of the integral of the force exerted by the object on the structure with respect to the distance by which the object displaces the surface of the structure during impact to the product of the maximum force exerted by the object on the structure during the impact and the total distance by which the object displaces the surface of the structure during the impact. The method also determines the respective values of characteristic variables of the structure that maximise the ratio for use in designing the structure. 1. A method of designing an impact mitigating structure; the method comprising:determining the force exerted by an object on the impact mitigating structure as a function of the distance by which the object displaces an outer surface of the impact mitigating structure during an impact of the object onto the outer surface of the impact mitigating structure;calculating a ratio of the integral of the force exerted by the object on the impact mitigating structure with respect to the distance by which the object displaces the outer surface of the impact mitigating structure during the impact to the product of the maximum force exerted by the object on the impact mitigating structure during the impact and the total distance by which the object displaces the outer surface of the impact mitigating structure during the impact; anddetermining the respective values of one or more characteristic variables of the impact mitigating structure that maximise the ratio for use in designing the impact mitigating structure.2. The method as claimed in claim 1 , wherein the impact mitigating structure comprises a cellular structure or a lattice structure.3. The method as claimed in claim 2 , wherein the cellular structure ...

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Номер записи: 55
04-01-2018 дата публикации

SINTERING METHOD, MANUFACTURING METHOD, OBJECT DATA PROCESSING METHOD, DATA CARRIER AND OBJECT DATA PROCESSOR

Номер: US20180001381A1
Автор: Kimblad Hans, Malm Niclas, Olsérius Cornelia
Принадлежит:

A method is provided of sintering a green object body to form a manufactured object. The method comprises providing a green object body. The green object body comprises granular construction material bound together by a binder. The method comprises providing a green support body for supporting the green object body. The green support body comprises granular construction material bound together by a binder. The method comprises supporting the green object body with the green support body. The method comprises sintering the green support body together with the green object body supported by the green support body. A method of manufacturing an object, a method of processing object data, a data carrier carrying program instructions and an object data processor are also provided. 1. A method of sintering a green object body to form a manufactured object , comprising:providing a green object body, the green object body comprising granular construction material bound together by a binder;providing a green support body for supporting the green object body, the green support body comprising granular construction material bound together by a binder;supporting the green object body with the green support body; andsintering the green support body together with the green object body supported by the green support body.2. A method of manufacturing an object , comprising:depositing a first plurality of layers of a construction material;selectively binding portions of each deposited layer of the first plurality of layers to form a green support body; depositing a second plurality of layers of a construction material;selectively binding portions of each deposited layer of the second plurality of layers to form a green object body supported by the green support body; andsintering the green support body together with the green object body supported by the green support body.3. The method according to claim 1 , wherein the green object body and the green support body exhibit ...

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Номер записи: 56
02-01-2020 дата публикации

Particles having a sinterable core and a polymeric coating, use thereof, and additive manufacturing method using the same

Номер: US20200001359A1
Автор: Åsa Ahlin, Ragnar FERRAND DRAKE DEL CASTILLO, Sofia NILSSON
Принадлежит: HOGANAS AB

Particles each having a sinterable core and a polymeric coating on at least a part of the core, wherein the polymeric coating includes a polymer that can be removed via decomposition by heat, catalytically or by solvent treatment, and wherein the polymeric coating is present in an amount of 0.10 to 3.00% by weight, relative to the total weight of the particles, as well as the use of these particles in an additive manufacturing process such as a powder bed and inkjet head 3D printing process. The particles and the process are able to provide a green part having improved strength and are thus suitable for the production of delicate structures which require a high green strength in order to minimize the risk of structural damage during green part handling.

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Номер записи: 57
02-01-2020 дата публикации

DEBINDING OF 3D OBJECTS

Номер: US20200001363A1
Автор: Barbati Alexander C., Gibson Michael A.
Принадлежит: Desktop Metal, Inc.

3D-printed parts may include binding agents to be removed following an additive manufacturing process. A debinding process removes the binding agents by immersing the part in a solvent bath causing chemical dissolution of the binding agents. The time of exposure of the 3D-printed part to the solvent is determined based on the geometry of the part, wherein the geometry is applied to predict the diffusion of the solvent through the 3D-printed part. The 3D-printed part is then immersed in the solvent bath to remove the binding agent, and is removed from the solvent bath after the time of exposure. 120-. (canceled)21. A method of determining a debinding time of a printed part or a model of a part , the method comprising:receiving data about the printed part or the model of the part;determining an effective thickness of the printed part or the model of the part by defining a geometry of a sphere having a volume that is occupied within an internal volume of the printed part or the model of the part; andcalculating a debinding time based on the effective thickness.22. The method of claim 21 , wherein the sphere is a largest sphere capable of being entirely encompassed by the internal volume of the printed part or the model of the part claim 21 , and wherein the effective thickness is proportional to a radius of the largest sphere.23. The method of claim 21 , wherein defining the geometry of the sphere having the volume that is occupied within the internal volume of the printed part or the model of the part comprises:generating a random sampling of points within a geometry of the printed part or the model of the part;calculating, for each of the points, a distance from the point to a closest surface of the printed part or the model of the part; anddetermining a maximum of the calculated distances.24. The method of claim 23 , wherein the maximum of the calculated distances is proportional to the effective thickness of the printed part or the model of the part.25. The method ...

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Номер записи: 58
02-01-2020 дата публикации

FOIL FUSION ADDITIVE MANUFACTURING SYSTEM AND METHOD

Номер: US20200001398A1
Автор: Haworth Troy Allan, Mellor Mitchell Loren Ray, Soja Matthew Ryoichi
Принадлежит:

An additive manufacturing system includes a foil supply drum, a melting energy source, and a processor. The foil supply drum is configured to be rotated for dispensing a foil sheet over a substrate surface supported by a build element. The melting energy source is configured to direct at least one melting energy beam onto a non-melted region of the foil sheet located over the substrate surface. The processor is configured to execute computable readable program instructions based on a three-dimensional digital definition of the object, and control the melting energy beam to selectively melt at least some of the non-melted region into melted portions forming a material layer of the object onto the substrate surface while separating the melted portions from non-melted portions, and command rotation of the foil supply drum for dispensing the foil sheet during manufacturing of the object in correspondence with the digital definition. 1. An additive manufacturing system for forming a object , comprising:at least one foil supply drum configured to be rotated for dispensing a foil sheet over a substrate surface supported by a build element;at least one melting energy source configured to direct at least one melting energy beam onto a non-melted region of the foil sheet located over the substrate surface; anda processor configured to execute computable readable program instructions based on a three-dimensional digital definition of the object, and control the melting energy beam to selectively melt at least some of the non-melted region into melted portions forming a material layer of the object onto the substrate surface while separating the melted portions from non-melted portions, and command rotation of the foil supply drum for dispensing the foil sheet during additive manufacturing of the object in correspondence with the digital definition.2. The manufacturing system of claim 1 , further comprising:at least one foil take-up drum configured to be rotated, under command ...

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Номер записи: 59
05-01-2017 дата публикации

METHOD FOR ADDITIVELY MANUFACTURING COMPONENT AND COMPONENT MADE THEREFROM

Номер: US20170001374A1
Автор: Adcock Thomas Charles, Cheverton Mark Allen, DEAL Andrew David, Deaton, Graham Michael Evans, JONES Marshall Gordon, JR. John Broddus, Singh Prabhjot
Принадлежит:

A method that includes additively manufacturing with an additive manufacturing (AM) system a sub-component that has a locator element. Using a control system of the AM system for positioning a first location of the locator element. Selectively placing a portion of another sub-component adjacent to the locator element, based on the positioning. Then attaching the second sub-component to the first sub-component in a region, wherein the region is based on the positioning knowledge from the control system so as to make a component. A component that comprises a first sub-component that has an AM locator element; and a second sub-component attached to the first sub-component, wherein the locator element is attached to the second sub-component within the same additive manufacturing build chamber as the first sub-component. 1. A method comprising:additively manufacturing with an additive manufacturing system a first sub-component having at least one locator element, thereby using a control system of the additive manufacturing system for positioning a first location of the at least one locator element;selectively placing a portion of a second sub-component adjacent to the at least one locator element of the first sub-component, based on the positioning; andattaching the second sub-component to the first sub-component in a region, wherein the region is based on the positioning from the control system of said additive manufacturing system, thereby defining a component.2. The method of claim 1 , wherein the attaching comprises welding with a welding source.3. The method of claim 2 , wherein the welding source comprises a laser.4. The method of claim 2 , wherein the welding comprises one of: gas welding claim 2 , e-beam welding claim 2 , friction stir welding claim 2 , ultrasonic welding claim 2 , and thermal welding.5. The method of claim 1 , wherein the second sub-component is additively manufactured.6. The method of claim 3 , wherein the additively manufacturing further ...

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Номер записи: 60
05-01-2017 дата публикации

SINTER SHELL

Номер: US20170001375A1
Автор: Melly Robert
Принадлежит:

According to some aspects, system and methods for generating a 3D model shell is provided. The system may include a memory and at least one processor coupled to the memory and specially configured to morphologically dilate a 3D model by a dilation distance, create a first copy of the 3D model and a second copy of the 3D model, perform morphological erosion on the first copy to generate a first shrunken model, perform morphological erosion on the second copy to generate a second shrunken model, and subtract the second shrunken model from the first shrunken model to generate the 3D model shell. 1. A method for generating a 3D model shell , the method comprising acts of:morphologically dilating a 3D model by a dilation distance;creating a first copy of the 3D model and a second copy of the 3D model;performing morphological erosion on the first copy to generate a first shrunken model;performing morphological erosion on the second copy to generate a second shrunken model; andsubtracting the second shrunken model from the first shrunken model to generate the 3D model shell.2. The method according to claim 1 , further comprising acts of:generating a pattern grid; andintersecting the pattern grid and the 3D model shell to generate a grid shell.3. The method according to claim 2 , further comprising acts of:generating a text blank and a text model;unioning the text blank and the pattern grid to generate a text blank and pattern grid combination; andsubtracting the text model from the grid shell,wherein intersecting the pattern grid and the 3D model shell includes intersecting the text blank and pattern grid combination and the 3D model shell to generate the grid shell.4. The method according to claim 2 , wherein the act of generating the pattern grid includes an act of generating a package grid and wherein the act of intersecting the pattern grid and the 3D model shell includes an act of intersecting the package grid and the 3D model shell to generate the grid shell.5. The ...

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Номер записи: 61
05-01-2017 дата публикации

3D Fonts for Automation of Design for Manufacturing

Номер: US20170001376A1
Автор: Grimaud Jean-Jacques
Принадлежит:

Customized 3D-printing can provide users with customized products, but need to be verified for quality and durability. In an embodiment, a method for three-dimensional (3D)-printing a customized product includes loading a 3D-font from a database. The 3D font includes multiple character relations. Each character relation connects any two given characters of the 3D font. The method also includes generating a 3D-representation of a customized product based on the 3D-font. The customized product is based on a plurality of characters received from a user. A 3D-font as described herein can provide customized, on-demand, 3D-printed products of a particular threshold of quality and durability. 1. A method for three-dimensional (3D)-printing a customized product , the method comprising:loading a 3D-font from a database, wherein the 3D font includes a plurality of character relations, each character relation connecting any two given characters of the 3D font; andgenerating a 3D-representation of a customized product based on the 3D-font, the customized product based on a plurality of characters received from a user.2. The method of claim 1 , further comprising 3D-printing the customized product according to the generated 3D-representation.3. The method of claim 1 , further comprising:presenting, to the user via a display, the 3D-representation of the customized product; andprompting the user to (a) approve the customized product for 3D-printing or (b) enter in further customizations of the customized product.4. The method of claim 1 , wherein the 3D-font comprises a matrix of character relations indexed by first index and second index claim 1 , wherein each character relation represents a connection transitioning a character represented by the first index to a character represented by the second index.5. The method of claim 1 , further comprising:creating the 3D-font for a particular material by determining a minimum threshold of the particular material to connect the any two ...

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Номер записи: 62
05-01-2017 дата публикации

Three-dimensional modelling and/or manufacturing apparatus, and related processes

Номер: US20170001377A1
Автор: Milton Dale Meisner, Robin Wynne Nack Meisner
Принадлежит: Meisner Inc

A uniquely featured addition to previous three dimensional prototyping machinery without any traversing X and Y coordinate moving parts, thus saving time by focusing on only an incrementally regular Z stage and the rapidity of chemical deposition via electrically localized reaction nodes through a porous/channeled plane called the build/extrusion platen. Processes for making objects using such machine and platen are also disclosed as well as features and further indexing of extrusion location inventions. Other features including chemistry, curing material, and curing control as well as activation methods and machines are also disclosed in combination with the feature of a simultaneous two-dimensional layer-wise deposition machine and process for “growing” the object in the Z direction using the displaceable platen or object supporting stage in a rapid manner. Further due to the rapid growth and deposition manner, additional benefits to the object creation and curable material, e.g. a monomer can be realized.

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Номер записи: 63
05-01-2017 дата публикации

Three-Dimensional Printer and Printing Accuracy Detection Method

Номер: US20170001378A1
Автор: TSAI Shih-Kuang, ZHENG Yong-Ping
Принадлежит:

A three-dimensional printer with detecting printing accuracy and a method for detecting printing accuracy is provided. The three-dimensional printer with printing accuracy detection includes a three-dimensional model conversion unit, a printing path locating unit, a printing path drawing unit, and a comparison unit. An actual printing path is drawn according to the real-time captured location information of a nozzle head of the three-dimensional printer and compared with a predetermined printing path, which may implement the detection of printing accuracy. The method for detecting printing accuracy may implement the accuracy detection of the three-dimensional printer and be capable of detecting the accuracy for the three-dimensional printer. The method for detecting printing accuracy also reminds an operator to check and maintain printing accuracy of the three-dimensional printer. 1. A three-dimensional printer with printing accuracy detection , comprising:a three-dimensional model conversion unit configured to convert a printing path of each layer of a three-dimensional model into data in sequence and layer-by-layer simulate slicing of the data to acquire a predetermined printing path of the each layer of the three-dimensional model;a printing path locating unit configured to real-time capture a location information of a nozzle head of the three-dimensional printer; anda comparison unit configured to compare the predetermined printing path and an actual printing path to acquire a matching result for detecting printing accuracy.2. The three-dimensional printer with printing accuracy detection of claim 1 , further comprising a printing path drawing unit coupled with the printing path locating unit claim 1 , the printing path drawing unit being configured to draw out the actual printing path of the each layer according to the location information of the nozzle head.3. The three-dimensional printer with printing accuracy detection of claim 1 , further comprising an ...

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Номер записи: 64
05-01-2017 дата публикации

A SELF-MONITORING ADDITIVE MANUFACTURING SYSTEM AND METHOD OF OPERATION

Номер: US20170001379A1
Автор: Long Yu
Принадлежит:

A self-monitoring additive manufacturing system and method of operation utilizes a surface imaging monitor to image a surface of a slice of a workpiece for storage and processing of the image to detect surface anomalies. The monitoring may operate in real time and in unison with an energy gun of the system for correction of the anomalies in real-time by re-melting of the anomaly. 1. An additive manufacturing system comprising:a layer of raw material;an energy gun for melting at least a portion of the layer and thereby forming at least in part a slice of a workpiece; anda surface monitor for detecting surface anomalies of the portion after solidification.2. The additive manufacturing system set forth in wherein the surface monitor is a volumetric imaging monitor.3. The additive manufacturing system set forth in wherein the raw material is a powder.4. The additive manufacturing system set forth in further comprising:an electric controller constructed an arranged to control the energy gun dictated at least in part by output signals received from the surface monitor.5. The additive manufacturing system set forth in wherein the surface monitor is a profilometer.6. The additive manufacturing system set forth in wherein the surface monitor is an interferometer.7. The additive manufacturing system set forth in wherein the energy gun is a laser gun.8. The additive manufacturing system set forth in wherein the energy gun is an electron beam gun.9. The additive manufacturing system set forth in wherein the anomalies include at least one of balling claim 1 , warping claim 1 , porosity claim 1 , cracking claim 1 , and delamination.10. A method of operating an additive manufacturing system comprising the steps of:forming at least a portion of a slice of a workpiece;taking an image of a surface of at least the portion of the slice with a surface monitor; andidentifying an anomaly of the surface through the image.11. The method set forth in wherein the surface monitor is a ...

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Номер записи: 65
05-01-2017 дата публикации

SYSTEMS AND METHODS OF CURING ADDITIVE MANUFACTURED MATERIALS

Номер: US20170001380A1
Автор: Xiao Zhen
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Methods of curing a photo-curable material, photo-curing devices, apparatuses for curing a photo-curable material, and methods of forming a photo-curing device are disclosed. A method of curing a photo-curable material may include placing a photo-curing device having a magnetic body adjacent to the photo-curable material and controlling movement of the photo-curing device with at least one magnet. A photo-curing device may include a magnetic body and at least one light source positioned at one or more locations on the magnetic body and configured to emit electromagnetic radiation. The magnetic body may be configured to be movable adjacent to a photo-curable material by at least one magnet. 1. A method of curing a photo-curable material , the method comprising:placing a photo-curing device comprising a magnetic body adjacent to the photo-curable material; andcontrolling movement of the photo-curing device with at least one magnet.2. The method of claim 1 , further comprising:positioning the photo-curing device with the at least one magnet such that the photo-curing device directs electromagnetic radiation towards a portion of the photo-curable material.3. The method of claim 2 , further comprising:directing the photo-curing device to emit at least one beam of electromagnetic radiation towards the portion of the photo-curable material.4. The method of claim 2 , further comprising:directing the photo-curing device to reflect at least one beam of electromagnetic radiation emitted by an external radiation source towards the portion of the photo-curable material.5. The method of claim 2 , further comprising:controlling at least one of an intensity and a wavelength of at least one beam of the electromagnetic radiation at a portion of the photo-curable material.6. The method of claim 1 , wherein controlling movement of the photo-curing device comprises:determining a movement path of the photo-curing device based upon at least one of a desired shape of the photo-curable ...

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Номер записи: 66
04-01-2018 дата публикации

MULTIPLE SUPPORT MATERIALS FOR ACCELERATED POST-PROCESSING OF THREE-DIMENSIONALLY PRINTED OBJECTS

Номер: US20180001545A1
Автор: Dufort Ron E., Hoover Linn C., HOWE Patrick J., Kanungo Mandakini, Ruiz Erwin
Принадлежит:

A three-dimensionally printed object includes build portions formed with a build material, first support portions formed with a first support material, and second portions formed with a second support material that is different than the first support material. The first and second support portions are arranged with the build portions such that the build portions are supported and protected during fabrication of the object. The arrangement is optimized to minimize a time period for removing the first and second support materials from the object and releasing the build portions. A method of producing the object includes operating ejectors of a three-dimensional object printer to form the build portion, first support portions, and the second support portions. The portions are formed with reference to the arrangement. 1. A three-dimensionally printed object comprising:portions formed with a build material;portions formed with a first support material; andportions formed with a second support material, the first support material being different from the second support material.2. The three-dimensionally printed object of wherein the first support material has a phase change temperature that is greater than a phase change temperature of the second support material.3. The three-dimensionally printed object of wherein the second support material can be removed by a heating process that heats the second support material to at least the phase change temperature of the second support material claim 2 , but does not heat the first support material to at least the phase change temperature of the first support material.4. The three-dimensionally printed object of wherein the first support material dissolves in a solvent that is different than a solvent in which the second support material dissolves.5. The three-dimensionally printed object of wherein the first support material dissolves in a solvent having a ph factor that is less than the ph factor of the solvent in which the ...

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Номер записи: 67
04-01-2018 дата публикации

SOLID OBJECT SHAPING APPARATUS, CONTROL METHOD FOR SOLID OBJECT SHAPING APPARATUS, AND CONTROL PROGRAM FOR SOLID OBJECT SHAPING APPARATUS

Номер: US20180001546A1
Автор: Yamazaki Satoshi
Принадлежит:

A solid object shaping apparatus can shape a solid object having a designated color, and includes a head unit that can eject a plurality of types of liquids including a first liquid used to represent the designated color and a curing unit that cures the plurality of liquids so as to form a plurality of blocks including a first block. The blocks include a first surface block whose upper face or lower face corresponds to a surface of the solid object and a second surface block whose side face corresponds to the surface of the solid object. When the solid object is shaped, the number of the first blocks used in a predetermined area formed by an upper face of the first surface block is different from the number of the first blocks used in a predetermined area formed by a side face of the second surface block. 1. A solid object shaping apparatus comprising:a head unit that can eject a plurality of types of liquids including a first liquid containing a first colorant component used to represent a designated color which is designated by a model for representing a shape and a color of a solid object, and a second liquid having a color which is different from the first liquid; anda curing unit that cures the first liquid ejected from the head unit so as to form a first dot, and cures the second liquid ejected from the head unit so as to form a second dot,wherein a first color block is formed by using the first dot, a second color block is formed by using the second dot without using the first dot, and the solid object is shaped by using a plurality of blocks including the first color block and the second color block,wherein a plurality of blocks constituting the solid object include a first surface block whose upper face or lower face corresponds to a surface of the solid object when the solid object is shaped, and a second surface block whose one side face corresponds to the surface of the solid object when the solid object is shaped, andwherein the number of the first ...

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Номер записи: 68
04-01-2018 дата публикации

THREE-DIMENSIONAL PRINTING AND THREE-DIMENSIONAL PRINTERS

Номер: US20180001553A1
Автор: BREZOCZKY Thomas Blasius, Buller Benyamin, LAPPEN Alan Rick, MURPHREE Zachary Ryan, ROMANO Richard Joseph
Принадлежит:

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time. 1. An apparatus for three-dimensional printing of one or more three-dimensional objects comprising: an enclosure that is configured to facilitate a plurality of three-dimensional printing cycles from a pre-transformed material , wherein one or more three-dimensional objects are printed during each of the plurality of three-dimensional printing cycles , which enclosure is configured to include a first atmosphere that is different from an ambient atmosphere , which apparatus is configured to exclude at least one component of the ambient atmosphere from contacting (i) the pre-transformed material and/or (ii) the one or more three-dimensional objects , during the plurality of three-dimensional printing cycles.2. The apparatus of claim 1 , wherein during the three-dimensional printing claim 1 , the apparatus is configured to exclude at least one component of the ambient atmosphere from the pre-transformed material and/or one or more three-dimensional object.3. The apparatus of claim 2 , wherein exclude comprises evacuate or purge.4. The apparatus of claim 2 , wherein exclusion of the at least one component of the ambient atmosphere is an active exclusion.5. The apparatus of claim 2 , wherein the ...

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Номер записи: 69
04-01-2018 дата публикации

3-D ELECTROSTATIC PRINTER USING TRACK BOUND PLATENS AND REGISTRATION SYSTEM

Номер: US20180001554A1
Автор: Ireland Jonathan, SMITH Bruce H., Soures Michael N., Thresh Donald, VAN BORTEL James D.
Принадлежит: XEROX CORPORATION

3-D printing system include development stations positioned to electrostatically transfer build and support materials to an intermediate transfer surface, a transfer station adjacent the intermediate transfer surface, guides adjacent the transfer station, and platens moving on the guides. The guides are shaped to direct the platens to repeatedly pass the transfer station and come in contact with the intermediate transfer surface at the transfer station. The intermediate transfer surface transfers a layer of the build and support materials to the platens each time the platens contact the intermediate transfer surface at the transfer station to successively form layers of the build and support materials on the platens. The platens and the intermediate transfer surface include alignment features. The alignment features temporarily join at the transfer station, as the platens pass the transfer station, to align the platens with the intermediate transfer surface as the platens contact the intermediate transfer surface. 1. A three-dimensional (3-D) printing system comprising:an intermediate transfer surface;development stations positioned to electrostatically transfer build and support materials to said intermediate transfer surface;a transfer station adjacent said intermediate transfer surface;guides adjacent said transfer station; andplatens moving on said guides,said guides are shaped to direct said platens to pass said transfer station and come in contact with said intermediate transfer surface at said transfer station,said intermediate transfer surface transfers a layer of said build and support materials to said platens each time said platens contact said intermediate transfer surface at said transfer station to successively form layers of said build and support materials on said platens,said platens include first alignment features,said intermediate transfer surface includes second alignment features, andsaid first alignment features temporarily join with said ...

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Номер записи: 70
04-01-2018 дата публикации

3-D ELECTROSTATIC PRINTER USING RACK AND PINION REGISTRATION SYSTEM

Номер: US20180001555A1
Автор: Fess Donald R., Hanna Brian A., Irizarry Roberto A., Saxton Lynn C., Terrero Carlos M.
Принадлежит: XEROX CORPORATION

3-D printing system include development stations positioned to electrostatically transfer build and support materials to an intermediate transfer surface, a transfer station adjacent the intermediate transfer surface, guides adjacent the transfer station, and platens moving on the guides. The guides are shaped to direct the platens to repeatedly pass the transfer station and come in contact with the intermediate transfer surface at the transfer station. The intermediate transfer surface transfers a layer of the build and support materials to the platens each time the platens contact the intermediate transfer surface at the transfer station to successively form layers of the build and support materials on the platens. The platens and the intermediate transfer surface include rack and pinion structures that temporarily join at the transfer station, as the platens pass the transfer station, to align the platens with the intermediate transfer surface as the platens contact the intermediate transfer surface. 1. A three-dimensional (3-D) printing system comprising:an intermediate transfer surface;development stations positioned to electrostatically transfer build and support materials to said intermediate transfer surface;a transfer station adjacent said intermediate transfer surface;guides adjacent said transfer station; andplatens moving on said guides,said guides are shaped to direct said platens to pass said transfer station and come in contact with said intermediate transfer surface at said transfer station,said intermediate transfer surface transfers a layer of said build and support materials to said platens each time said platens contact said intermediate transfer surface at said transfer station to successively form layers of said build and support materials on said platens,said platens include a rack structure,said intermediate transfer surface includes a pinion structure, andsaid rack structure temporarily join with said pinion structure at said transfer ...

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Номер записи: 71
04-01-2018 дата публикации

Three-dimensional printing and three-dimensional printers

Номер: US20180001556A1
Автор: Alan Rick Lappen, Benyamin Buller, Richard Joseph ROMANO, Thomas Blasius Brezoczky, Zachary Ryan Murphree
Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time.

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Номер записи: 72
04-01-2018 дата публикации

THREE-DIMENSIONAL PRINTING AND THREE-DIMENSIONAL PRINTERS

Номер: US20180001557A1
Автор: BREZOCZKY Thomas Blasius, Buller Benyamin, LAPPEN Alan Rick, MARTINSON Robert Michael, MURPHREE Zachary Ryan, ROMANO Richard Joseph
Принадлежит:

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time. 1. An apparatus for three-dimensional printing of at least one three-dimensional object comprising:an unpacking station configured to facilitate removal of at least a portion of a starting material of the at least one three-dimensional object from the at least one three-dimensional object, which unpacking station comprises a first atmosphere; anda first build module configured to accommodate the at least one three-dimensional object and the starting material, which first build module comprises a second atmosphere, which unpacking station and the first build module are configured to reversibly engage, wherein the unpacking station and/or the first build module are configured to accommodate a pressure above an ambient pressure at least during the removal.2. The apparatus of claim 1 , wherein during the removal claim 1 , the unpacking station and/or first build module are configured to facilitate pressure maintenance of the first atmosphere and/or the second atmosphere respectively to above ambient pressure.3. The apparatus of claim 1 , wherein the unpacking station comprises a first sealable opening by a first lid that is reversibly removable claim 1 , and wherein the first build module comprises a ...

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Номер записи: 73
04-01-2018 дата публикации

THREE-DIMENSIONAL PRINTING APPARATUS AND OBJECT-FORMATION-DATA PRODUCING APPARATUS

Номер: US20180001560A1
Автор: YOSHIDA Makoto
Принадлежит:

A three-dimensional printing apparatus in which an amount of resin material used in forming a three-dimensional object is reduced, includes a core rod including a central shaft, a rotation mechanism that rotates the core rod about the central shaft, a guide rail extending above the core rod and along an axis of the core rod, a shaping head slidably provided on the guide rail and discharging a thermoplastic resin to the core rod, and a moving mechanism that moves the shaping head along the guide rail. 1. A three-dimensional printing apparatus comprising:a core rod including a central shaft;a rotation mechanism that rotates the core rod about the central shaft;a guide rail extending along an axis of the core rod and disposed above the core rod;a shaping head that is slidably engaged with the guide rail and discharges a thermoplastic resin to the core rod; anda moving mechanism that moves the shaping head along the guide rail.2. The three-dimensional printing apparatus according to claim 1 , further comprising:a housing accommodating the core rod, the guide rail, and the shaping head; whereinthe core rod is rotatably supported on the housing.3. The three-dimensional printing apparatus according to claim 2 , wherein the core rod is detachably supported on the housing.4. The three-dimensional printing apparatus according to claim 1 , wherein the core rod is made of a resin.5. An object-formation-data producing apparatus for producing object formation data used in a three-dimensional printing apparatus according to to form a three-dimensional object including a shaft and a plurality of layers stacked around the shaft claim 1 , the object-formation-data producing apparatus is configured or programmed to include:a storing processor that stores data of the three-dimensional object;a reference-position setting processor that sets a reference position serving as a predetermined position of reference for the three-dimensional object; andan object-formation-data producing ...

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Номер записи: 74
04-01-2018 дата публикации

Three-dimensional printing of investment casting patterns

Номер: US20180001561A1
Автор: Michael G. HASCHER, William Buckley
Принадлежит: Individual

A system and method for generating investment casting patterns by 3D printing. CAD software is used to generate a hollow 3D model of a solid 3D model of a desired pattern. The pattern is generated by a 3D printer which prints the exterior of the pattern in pattern wax and the interior in support wax.

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Номер записи: 75
04-01-2018 дата публикации

METHOD FOR EXPOSING A THREE-DIMENSIONAL REGION

Номер: US20180001562A1
Автор: FITZINGER Andreas, Gruber Simon
Принадлежит:

A method for illuminating a three-dimensional area (), the three-dimensional area being divided into at least two successive layers (), which are illuminated temporally sequentially, each layer () being divided into at least two illumination fields () with at least one first subarea (), one second subarea (′), if appropriate a third subarea (″) and if appropriate further subareas, wherein adjacent illumination fields () overlap in individual subareas (″) to avoid defectively illuminated regions. 11223444344. A method for illuminating a three-dimensional area () , the three-dimensional area being divided into at least two successive layers () , which are illuminated temporally sequentially , each layer () being divided into at least two illumination fields () with at least one first subarea () , one second subarea (′) , if appropriate a third subarea (″) and if appropriate further subareas , wherein adjacent illumination fields () overlap in individual subareas (′ , ″) to avoid defectively illuminated regions.2444. The method according to claim 1 , wherein to avoid over-illumination claim 1 , the average illumination intensity in the overlapping subareas (′ claim 1 , ″) is lower than in the non-overlapping subareas ().3442. The method according to claim 2 , wherein the illumination intensity in the overlapping subareas (′ claim 2 , ″) of adjacent layers () is different.444. The method according to claim 3 , wherein the illumination intensity in the overlapping subareas (′ claim 3 , ″) varies in one or two location coordinates claim 3 , so that the illumination intensity in these areas is dependent on location.544. The method according to claim 3 , wherein in individual overlapping subareas (′) claim 3 , a locally constant illumination intensity is provided claim 3 , and a locally variable illumination intensity is provided in other overlapping subareas (″).64423. The method according to claim 3 , wherein the illumination intensity in the overlapping subareas (′ claim ...

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Номер записи: 76
04-01-2018 дата публикации

Device and method of exposure control in a device for producing a three-dimensional object

Номер: US20180001563A1
Автор: Harald HÄGER, Joachim Wichner, Markus Frohnmaier, Michael GÖTH, Robert Achim DOMRÖSE, Stefan Fröbe
Принадлежит: EOS GmbH

An exposure control device ( 31 ) serves for equipping and/or retrofitting a generative layer-wise building device ( 1 ). The latter comprises an exposure device ( 20 ) which emits electromagnetic radiation ( 22 ) or particle radiation and is configured to irradiate positions to be solidified in a layer in such a way that after cooling they exist as an object cross-section or part of the same. The exposure control device ( 31 ) has a first data output interface ( 36 ), at which control commands can be output to the exposure device ( 20 ). The control commands which are output specify one of a plurality of exposure types wherein an exposure type is defined by a predetermined combination of a radiation energy density to be emitted by the exposure device ( 20 ) and a scanning pattern with which the radiation ( 22 ) is being directed to a region of a layer of the building material ( 15 ). Furthermore, the exposure control device ( 31 ) has a second data output interface ( 37 ) at which an exposure type can be output in real time in relation to a timing of the output of a control command specifying this exposure type.

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Номер записи: 77
04-01-2018 дата публикации

Identifying a characteristic of a material for additive manufacturing

Номер: US20180001565A1
Автор: Thomas Hocker
Принадлежит: SABIC Global Technologies BV

Systems, devices, and methods according to the present disclosure are configured for use in additive manufacturing, e.g. 3D printing. Various materials, including thermoplastic materials, can be used with an additive manufacturing system to create a part composite. Systems, devices, and methods described herein can be used to identify a characteristic of a material or of a material container for use with an additive manufacturing system. The identified characteristic can be used to determine an authenticity of the material. Based on the authenticity, one or more features or functions of the additive manufacturing system can be updated. The characteristic of the material may be optical information on the container of the material, e.g. a bar code, may be identified by emitting x-ray radiation and receiving a spectral characteristic, may be an electrical or magnetic characteristic or may be engraved on the surface of the material itself.

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Номер записи: 78
04-01-2018 дата публикации

Three-dimensional object substructures

Номер: US20180001566A1
Автор: Jan Morovic, Jay S Gondek, Juan Manuel GARCIA REYERO VINAS, Peter Morovic
Принадлежит: Hewlett Packard Development Co LP

Methods and apparatus relating to substructures for 3D objects are described. In an example, a method for providing a three-dimensional halftone threshold matrix is described. The method may comprise receiving a substructure model representing a three-dimensional material structure and populating each location in the substructure model at which the structure exists with a halftone threshold value.

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Номер записи: 79
04-01-2018 дата публикации

REMOVABLE 3D BUILD MODULE COMPRISING A MEMORY

Номер: US20180001567A1
Автор: COMAS Esteve, DOMINGUEZ PASTOR Pablo, GIMENEZ MANENT Jordi, JUAN Fernando, Martin Vidal Pau, MORRAL Pol
Принадлежит: Hewlett-Packard Development Company, L.P.

A removable build module to connect to a host apparatus, may include a build platform to support an object-to-be-built, a drive unit to move the build platform, a memory to receive and store build parameters, and an interface circuit to communicate the build parameters to the host apparatus. 1. A removable build module to be connected to and removed from a host apparatus , comprisinga build material storage compartment to store build material,a build platform to support an object to be built,a drive unit to move the build platform,a memory including a data field to receive and store at least one build parameter, andan interface circuit to connect to an interconnect circuit of a host apparatus, to exchange the at least one build parameter with the host apparatus.2. The removable build module of comprising a build material transport unit to internally transport build material from the storage compartment to the platform.3. The removable build module of wherein the memory and interface circuit are toconnect to at least two different host apparatuses,store parameters received by the host apparatuses, andcommunicate certain parameters received from one host apparatus to the other host apparatus.4. The removable build module of wherein the memory is to receive claim 1 , store and communicate pre-build job parameters and post-build job parameters.5. The removable build module of wherein the memory is to concurrently store different build parameters corresponding to a mix of different build materials in the storage compartment.6. The removable build module of wherein the build parameters include melt temperature claim 1 , crystallization temperature and radiation absorptivity factor claim 1 , and/or ranges thereof.7. The removable build module of comprising at least one temperature sensor to sense a temperature of material on the platform.8. The removable build module of comprising at least one build material level sensor to sense a build material top surface level above ...

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Номер записи: 80
04-01-2018 дата публикации

CALIBRATION OF APPARATUS

Номер: US20180001568A1
Автор: Fornos Pol, Puigardeu Aramendia Sergio, Ramirez Muela David, Sanchez Ribes Salvador
Принадлежит: Hewlett-Packard Development Company, L.P.

A method of calibrating an apparatus for generating a three-dimensional object is described in which a calibration substrate is generated by depositing build material and applying energy to the build material to form a fused surface; a calibration pattern is generated on the calibration substrate by depositing an agent on the calibration surface according to a predetermined pattern; and an attribute of the calibration pattern is measured. 1. A method of calibrating an apparatus for generating a three-dimensional object , the method comprising:generating a calibration substrate by depositing build material and applying energy to the build material to form a fused surface;generating a calibration pattern on the calibration substrate by depositing an agent on the calibration substrate according to a predetermined pattern; andmeasuring an attribute of the calibration pattern.2. A method in accordance with the method of wherein the calibration substrate is generated by repeatedly depositing build material and applying energy to the build material claim 1 , such that the calibration substrate comprises a plurality of layers of build material.3. A method in accordance with the method of wherein generating a calibration pattern on the calibration substrate comprises:depositing further build material on the calibration substrate;depositing the agent on the further build material according to the predetermined pattern; andapplying energy to the further build material.4. A method in accordance with the method of wherein the calibration pattern is generated by repeatedly depositing further build material claim 3 , depositing an agent claim 3 , and applying energy claim 3 , such that the calibration pattern comprises a plurality of layers of build material.5. A method in accordance with the method of wherein generating a calibration pattern on the calibration substrate comprises claim 3 , before applying energy to the further build material claim 3 , depositing a further agent ...

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Номер записи: 81
04-01-2018 дата публикации

CONTROL DATA FOR GENERATION OF 3D OBJECTS

Номер: US20180001569A1
Автор: GARCIA REYERO VINAS Juan Manuel, Morovic Jan, Morovic Peter
Принадлежит:

Methods and apparatus associated with three-dimensional objects are described. In an example, a method comprises receiving data representing a three-dimensional model object, the data comprising object model data and object property data. For at least one object property, a sub-region of the object in which the object property is non-variable is identified and, for at least one location within the object, all sub-regions in which the location is situated are identified. Based on the combination of identified sub-regions for a location, print material data is determined for the location. Control data for the production of a three-dimensional object is generated according to the print material data. 1. A method , comprising:receiving data representing a three-dimensional model object, the data comprising object model data and object property data;identifying, for at least one object property, a sub-region of the object in which the object property is non-variable;identifying, for at least one location within the object, all sub-regions in which the location is situated;determining, for at least one location within the object and based on the combination of identified sub-regions, print material data for the location;generating control data for the production of a three-dimensional object according to the print material data.2. A method according to comprising determining a data set associated with a sub-region claim 1 , wherein each member of the data set comprises a volume coverage vector resulting in the non-variable object property.3. A method according to in which the data set comprises all the examples of volume coverage vectors resulting in the non-variable object property and other object properties for the model object.4. A method according to in which determining the print material data for a location comprises identifying a common member within at least two data sets determined for sub-regions identified for that location.5. A method according to in which ...

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Номер записи: 82
04-01-2018 дата публикации

Authentication, Testing and Certification of Additive Manufactured Items and Cryogenically Processed Additive Manufactured Items

Номер: US20180001570A1
Автор: Cahn Jack
Принадлежит:

Embodiments describe a means to authenticate manufacture of AM parts to a third party using witness artifacts. Embodiments describe cryogenic processing of additive manufactured (AM) metal and metal-matrix items to improve mechanical, physical, electrical, and/or chemical properties. Embodiments also describe a method of scientific testing and engineering analysis that validate cryogenically treated, AM items by measuring and contrasting enhancements in wear, corrosion, fracture, fatigue, and electro-chemical properties against baseline samples. Embodiments also describe a certification method, using a MIL-STD format digitized or written report that outputs a standards-based, First Article Test report and certification statement. The embodiments describe a lean processing method and value stream map that captures defects and identifies and segregates discrepant parts along with proxy witness test samples. Embodiments also describe an archival storage method of authenticated, validated, and certified artifacts, identical in material alloy and metallurgical characteristics to the in-use AM part, that meet AS9100 ISO quality standards for such critical applications as space flight, military, FDA, medical, nuclear, and civilian aviation. 1. A method of authenticating , testing and certifying additive manufactured and cryogenically treated additive manufactured parts comprising:Producing a set of artifacts approximately simultaneous with the creation of the additive manufactured part.Identifying the artifacts through various marking or ID methods.Identifying a set of metallurgical characteristics of an additive manufactured part and then testing the artifact.Authenticating the artifacts using a process that links the characteristics of the artifact manufacturing, by proxy, to the referenced part.Testing and certifying the additive manufactured part via the artifact, if not cryogenically processed.If cryogenically processed, separating the authenticated AM artifacts into ...

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Номер записи: 83
02-01-2020 дата публикации

ADDITIVE MANUFACTURING OF SHAPED BODIES FROM CURABLE MATERIALS

Номер: US20200001520A1
Автор: BOURQUIN Raphael, BRÜHWILER Armin, LOOTENS Didier
Принадлежит: SIKA TECHNOLOGY AG

A method for producing a shaped body from a curable material, in particular from a mineral binder composition, wherein the curable material is applied layer by layer in an additive method, in particular in an additive free-space method, by a printing head that can be moved in at least one spatial direction and wherein an application rate of the curable material and the temporal development of strength of the curable material are coordinated with each other. 1. A method for producing a shaped body from a curable material , wherein the curable material is applied in layers in an additive method by means of a print head that is moveable in at least one spatial direction and wherein an application rate of the curable material and the temporal strength development of the curable material are coordinated with each other.2. The method as claimed in claim 1 , wherein the application rate of the curable material is set depending on the strength of the curable material at a specified point in time after mixing of the curable material and/or after the exit of the curable material from the print head or vice versa.3. The method as claimed in claim 1 , wherein the application rate of the curable material is changed as the number of layers increases.4. The method as claimed in claim 1 , wherein a waiting time is observed between the application of two successive layers of curable material claim 1 , wherein the waiting time is selected depending on the temporal strength development of the curable material.5. The method as claimed in claim 1 , wherein a movement speed of the print head is set depending on the temporal strength development of the curable material.6. The method as claimed in claim 1 , wherein the movement speed of the print head is set depending on a length of a distance the print head has to travel in a current layer of the shaped body with release of curable material.7. The method as claimed in claim 1 , wherein the temporal strength development of the curable ...

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Номер записи: 84
02-01-2020 дата публикации

THREE-DIMENSIONAL PRINTING SYSTEM AND EQUIPMENT ASSEMBLY

Номер: US20200001521A1
Автор: BEBB Thomas J., BRADBURY Thomas J., ISKRA James, SURPRENANT Henry L., WEST Thomas G., YOO Jaedeok
Принадлежит:

A three-dimensional printing system and equipment assembly for the manufacture of three-dimensionally printed articles is provided. The equipment assembly includes a three-dimensional printing build system, an optional liquid removal system and an optional harvester system. The build system includes a conveyor, plural build modules and at least one build station having a powder-layering system and a printing system. The equipment assembly can be used to manufacture pharmaceutical, medical, and non-pharmaceutical/non-medical objects. It can be used to prepare single or multiple articles. 1177-. (canceled)178. A build module for a three-dimensionally printing apparatus , comprising a height adjustable platform and a removable build plate disposed above the height adjustable platform , wherein the removable build plate has a plurality of perforations.1791. The build module according to claim , wherein the plurality of perforations are evenly spaced.1802. The build module according to claim , wherein the surface of the removable build plate is smooth.1812. The build module according to claim , wherein the surface of the removable build plate is roughened.1821. The build module according to claim , wherein the surface of the removable build plate is smooth.1831. The build module according to claim , wherein the surface of the removable build plate is roughened.1841. The build module according to claim , wherein the shape of the removable build plate is a rectangle with rounded corners.1851. The build module according to claim , wherein the shape of the removable build plate is a rectangle with one convex end.1861. The build module according to claim , wherein the shape of the removable build plate has a bullet-shaped profile.1871. The build module according to claim , further including one or more sidewalls surrounding the height adjustable platform and the build plate , and defining a cavity within which the height adjustable platform incrementally raised or lowered.188 ...

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Номер записи: 85
02-01-2020 дата публикации

Method of forming three-dimensional object and three-dimensional forming apparatus

Номер: US20200001523A1
Автор: Daizo Aoyagi, Kenta Anegawa, Yusuke Watanabe
Принадлежит: Seiko Epson Corp

The method of forming a three-dimensional object includes: a first forming process of causing a nozzle to eject a forming material onto a forming surface of a forming base and forming a first portion and a second portion such that the first portion and the second portion are away from each other in a first direction in parallel to the forming surface; a curing process of curing the first portion and the second portion; and a second forming process of causing the nozzle to eject the forming material between the first portion and the second portion and forming a third portion that has a shape that successively connects an end surface of the first portion in the first direction to an end surface of the second portion in the first direction, after the curing process.

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Номер записи: 86
02-01-2020 дата публикации

CLOSED LOOP PRINT PROCESS ADJUSTMENT BASED ON REAL TIME FEEDBACK

Номер: US20200001525A1
Автор: Chousal Ivan Dejesus, Etcheson Jamie Lynn, Mueller Robert Lee, Tanner Christopher Sean, Wynne Ben
Принадлежит: Intrepid Automation

In some embodiments, a photoreactive 3D printing system and methods comprise providing a system with a resin tub comprising a membrane, wherein the membrane rests on a physical tension element such that increasing downward force on the resin tub induces increasing tension on the membrane. The system also comprises a plurality of sensors comprising a resin bulk temperature sensor, and a print recipe comprising information for each layer in a 3D printed part to be built on the print platform. In some embodiments, a resin bulk temperature is measured, and the information in the print recipe, including information related to the downward force on the resin tub, is updated during a printing run based on the resin bulk temperature measurement. In some embodiments, the print recipe can be updated during a printing run based on input from at least two sensors of the plurality of sensors. 1. A method , comprising: a chassis;', 'an elevator system movably coupled to the chassis, wherein the elevator system comprises elevator arms;', 'a print platform mounted to the elevator arms;', 'a resin tub, wherein the resin tub comprises a membrane, and the membrane rests on a physical tension element such that an increasing downward force on the resin tub induces an increasing tension on the membrane;', 'a membrane tension apparatus which applies a downward force on the resin tub;', 'a resin pool confined by the resin tub and the membrane;', 'an illumination system;', 'a plurality of sensors comprising a resin bulk temperature sensor; and', 'a print recipe comprising information for layers in a 3D printed part to be built on the print platform, wherein the print recipe comprises one or more of build geometry, illumination energy, exposure time per layer, wait time between layers, print platform position, print platform velocity, print platform acceleration, resin tub position, resin tub force, resin chemical reactivity, and resin viscosity;, 'providing a photoreactive 3D printing ...

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Номер записи: 87
02-01-2020 дата публикации

THREE-DIMENSIONAL PRINTING SYSTEM WITH INTEGRATED SCAN MODULE CALIBRATION

Номер: US20200001526A1
Автор: Clay John D., Cooper Guthrie
Принадлежит:

A three-dimensional printing system for solidifying a photocurable resin in a layer-by-layer manner at a build plane includes a scan module, a transparent plate, a sensor, and a controller. The scan module is configured to scan the light beam along two axes to address the build plane. The transparent plate is positioned in the optical path between the scan module and the build plane. The transparent plate has at least one reflective feature in the optical path. The sensor is mounted above the glass plate and is positioned to receive light reflected from the reflective feature. The controller is configured to operate the scan module to scan the light beam across the build plane, receive a signal from the sensor when the light beam impinges upon the reflective feature, and analyze the signal to verify a proper alignment of the light beam to the build plane. 1. A three-dimensional printing system having a laser module for generating a beam for solidifying a photocurable resin in a layer-by-layer manner at a build plane comprising:a scan module for receiving the light beam and scanning the light beam along two axes to address the build plane;a transparent plate positioned in the optical path between the scan module and the build plane;a reflective feature disposed on or proximate to the transparent plate;a sensor above the glass plate positioned to receive light reflected from the reflective feature; and operate the scan module to scan the light beam across the build plane;', 'receive a signal from the sensor when the light beam impinges upon the reflective feature; and', 'analyze the signal to verify a proper alignment of the light beam to the build plane., 'a controller configured to2. The three-dimensional printing system of wherein the reflective feature includes an array of reflective features.3. The three-dimensional printing system of further comprising a housing for protecting the scan optics from vapors generated during solidification of the photocurable resin ...

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Номер записи: 88
02-01-2020 дата публикации

METHOD FOR FABRICATING OBJECT AND APPARATUS FOR FABRICATING OBJECT

Номер: US20200001527A1
Автор: Park Soyoung
Принадлежит:

A method for fabricating an object includes forming, first applying, second applying, and repeating. The forming forms a powder layer. The first applying applies a droplet containing a radiation absorber to the powder layer. The second applying applies radiant energy to the powder layer. The repeating repeats the forming, the first applying, and the second applying. The first applying includes applying the droplet to a surface of the powder layer to form a fabrication region; dividing the fabrication region into a plurality of divided regions; and applying the droplet a plurality of times to a partial specific divided region among the plurality of divided regions. The second applying includes applying the radiant energy with a variable radiation intensity to a range including at least the specific divided region. 1. A method for fabricating an object , the method comprising:forming a powder layer;first applying a droplet containing a radiation absorber to the powder layer;second applying radiant energy to the powder layer; andrepeating the forming, the first applying, and the second applying, applying the droplet to a surface of the powder layer to form a fabrication region,', 'dividing the fabrication region into a plurality of divided regions; and', 'applying the droplet a plurality of times to a partial specific divided region among the plurality of divided regions, and, 'wherein the first applying includeswherein the second applying includes applying the radiant energy with a variable radiation intensity to a range including at least the specific divided region.2. The method according to claim 1 ,wherein the specific divided region is an edge region of the fabrication region adjacent to a non-fabrication region on a surface of the powder layer.3. The method according to claim 1 ,wherein the first applying includes applying the droplet to the specific divided region a larger number of times than a number of times of applying the droplet to another divided region ...

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Номер записи: 89
02-01-2020 дата публикации

ADDITIVE MANUFACTURING SYSTEM

Номер: US20200001528A1
Автор: Stockett Ryan C., Tyler Kenneth Lyle
Принадлежит: Continuous Composites Inc.

A system for additively manufacturing a composite part is disclosed. The system may include a vat configured to hold a supply of resin, and a build surface disposed inside the vat. The system may also include a print head configured to discharge a matrix-coated continuous reinforcement onto the build surface, and an energy source configured to expose resin on a surface of the matrix-coated continuous reinforcement to a cure energy. 1. An additive manufacturing system , comprising:a vat configured to hold a supply of resin;a build surface disposed inside the vat;a print head configured to discharge a matrix-coated continuous reinforcement onto the build surface; andan energy source configured to expose resin on a surface of the matrix-coated continuous reinforcement to a cure energy.2. The additive manufacturing system of claim 1 , further including a cure enhancer configured to at least partially cure a matrix in the matrix-coated continuous reinforcement prior to exposure of the resin.3. The additive manufacturing system of claim 2 , further including an elevator configured to incrementally lower the matrix-coated continuous reinforcement into the supply of resin.4. The additive manufacturing system of claim 3 , wherein the build surface is perforated to pass resin from a section of the vat below the build surface to a section of the vat above the build surface during incremental lowering of the matrix-coated continuous reinforcement.5. The additive manufacturing system of claim 2 , further including a valve moveable to incrementally raise a level of the supply of resin inside the vat after discharge of the matrix-coated continuous reinforcement.6. The additive manufacturing system of claim 1 , further including a support configured to move the print head inside the vat.7. The additive manufacturing system of claim 6 , further including a controller in communication with the print head claim 6 , the energy source claim 6 , and the support claim 6 , the controller ...

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Номер записи: 90
02-01-2020 дата публикации

METHODS AND SYSTEMS FOR ADDITIVE MANUFACTURING

Номер: US20200001533A1
Автор: HABIBI MOHSEN, Packirisamy Muthukumaran
Принадлежит:

Additive manufacturing (AM) exploits materials added layer by layer to form consecutive cross sections of desired shape. However, prior art AM suffers drawbacks in employable materials and final piece-part quality. Embodiments of the invention introduce two new classes of methods, solidification and trapping, to create complex and functional structures of macro/micro and nano sizes using configurable fields irrespective of whether they need a medium or not for transmission. Selective Spatial Solidification forms the piece-part directly within the selected build material whilst Selective Spatial Trapping injects the build material into the chamber and selectively directs it to accretion points in a continuous manner. In each a localized spatiotemporal concentrated field is established by configuring or maneuvering field emitters. These methods are suitable to create any 3D part with high mechanical properties and complex geometries. These layerless methods may be used discretely or in combination with conventional AM and non-AM manufacturing processes. 138-. (canceled)39. A system for forming three-dimensional (3D) structures comprising:a chamber;a plurality of surfaces, each surface forming a predetermined portion of the chamber;a plurality of discretized elements, each discretized element of the plurality of discretized elements for generating an emitted field of a predetermined type and associated with a surface of the plurality of surfaces;a plurality of field sources, each field source coupled to a predetermined subset of the plurality of discretized elements and each generating predetermined control signals of appropriate characteristics to each discretized element of the predetermined subset of the plurality of discretized elements in dependence upon control data received from a control unit; andthe control unit for generating the control data provided to the plurality of field sources; whereinthe control data is generated in dependence upon of model data ...

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Номер записи: 91
02-01-2020 дата публикации

Integrated additive manufacturing systems incorporating a fixturing apparatus

Номер: US20200001536A1
Автор: Joseph M. Desimone, Roy Goldman, Steven Kenneth POLLACK, Yongqiang Li
Принадлежит: Carbon Inc

An integrated additive manufacturing system includes: (a) at least one resin supply (41); (b) a plurality of additive manufacturing machines (43) on which parts may be produced, each of said additive manufacturing machines (43) operatively associated with said at least one resin supply (41); and (c) at least one peripheral machine operatively associated with each of said additive manufacturing machines and said at least one resin supply, wherein said at least one peripheral machine comprises a part fixturing apparatus (200).

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Номер записи: 92
02-01-2020 дата публикации

3D PRINTER AND 3D PRINTING

Номер: US20200001537A1
Автор: TORRENT Anna, Trenchs Magana Albert, ZAMORANO Juan Manuel
Принадлежит: Hewlett-Packard Development Company, L.P.

A 3D printing system comprising: a selective solidification module to: form a printed article by processing a build material; and form a printed container encompassing the printed article and a portion of unused build material about the printed article, the printed container defining a first port and a second port fluidly connected to the first port. The 3D printing system further comprises a connector to couple to the first port or second port of the printed container; and a pump fluidly connected to the connector to cause a fluid to flow through the printed container from the first port to the second port such that the printed article is cooled by the fluid flow. 1. A 3D printing system comprising: form a printed article by processing a build material; and', 'form a printed container encompassing the printed article and a portion of unused build material about the printed article, the printed container defining a first port and a second port fluidly connected to the first port;, 'a selective solidification module toa connector to couple to the first port or second port of the printed container; anda pump fluidly connected to the connector to cause a fluid to flow through the printed container from the first port to the second port such that the printed article is cooled by the fluid flow.2. The 3D printing system of claim 1 , further comprising a post processing station to:receive a printed container; orreceive a printing bucket containing the printed container and unused build material surrounding the printed container;wherein the post processing station includes the connector and the pump.3. The 3D printing system of claim 1 , wherein the pump is a fluid injector to cause fluid to flow by injecting fluid into the printed container; orwherein the pump is a vacuum pump to cause the fluid to flow by pulling fluid through the printed container.4. The 3D printing system of claim 1 , further comprising a robotic arm to locate the printed container and drive the ...

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Номер записи: 93
02-01-2020 дата публикации

THREE-DIMENSIONAL PRINTING SYSTEM WITH LASER CALIBRATION SYSTEM

Номер: US20200001538A1
Автор: Cooper Guthrie
Принадлежит:

A three-dimensional printing system is configured to selectively solidify a build material at a build plane in a layer-by-layer manner. The three-dimensional printing system includes a laser module, a scan module, and a controller. The laser module is for emitting a light beam along a main optical path from the laser module to the build plane. The scan module includes a motorized mirror and a sensor. The motorized mirror includes a substrate having an optical coating that reflects at least 90% of incoming beam power such that the mirror transmits no more than 10% of the incoming beam power. The sensor is positioned to receive transmitted light from the mirror. The controller is configured to operate the laser module to emit the light beam along the main optical path, analyze a signal from the sensor, and based upon the analysis, to estimate a calibration error for the laser module. 1. A three-dimensional printing system for solidifying a build material at a build plane in a layer-by-layer manner comprising:a laser module for emitting a light beam along a main optical path from the laser module to the build plane;a scan module including a motorized mirror and a sensor, the motorized mirror including a substrate with an optical coating that reflects at least 90% of the light beam power such that the mirror transmits no more than 10% of the light beam power, the sensor positioned to receive transmitted light from the mirror; and operate the laser module to emit the light beam along the main optical path;', 'analyze a signal from the sensor; and', 'based upon the analysis, estimate a calibration error for the laser module., 'a controller configured to2. The three-dimensional printing system of wherein the optical coating transmits between 0.1 and 4.0 percent of the light beam power.3. The three-dimensional printing system of wherein the optical coating transmits between 0.2 and 2.0 percent of the light beam power.4. The three-dimensional printing system of wherein the ...

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Номер записи: 94
02-01-2020 дата публикации

THREE-DIMENSIONAL PRINTER RESPONSIVE TO EXTERNAL VIBRATIONS

Номер: US20200001539A1
Автор: Cooper Guthrie
Принадлежит:

A three-dimensional printing system for manufacturing a three-dimensional article includes a build platform, a light engine, a sensor, and a controller. The build platform is for supporting the three-dimensional article. The light engine is for addressing the build plane for selectively solidifying the material layer onto an active surface. The sensor is mounted on the light engine and is configured to generate a signal based upon vibrations from an external source. The controller is configured to form layers of the three dimensional article. Concurrent with forming the layers, the controller is configured to receive a signal from the sensor, analyze the signal to compare received vibrations to a predetermined vibration threshold, and, if the received vibrations exceed the predetermined threshold, take further action. 1. A three-dimensional printing system for manufacturing a three-dimensional article comprising:a build platform for supporting the three-dimensional article, the build platform or the three-dimensional article defining an active surface for accreting a material layer;a light engine for addressing a build plane;a sensor mounted on the light engine that generates a signal based upon vibrations that originate from a source external to the light engine; [ position the active surface at the build plane;', 'operate the light engine to selectively cure portions of resin at the build plane; and', 'repeat the positioning and operating to complete forming the three-dimensional article; and, 'form layers of the three-dimensional article including, 'concurrent with forming the layers, receive a signal from the sensor;', 'analyze the signal to compare received vibrations to a predetermined vibration threshold; and', 'if the received vibrations exceed the predetermined threshold, take further action., 'a controller configured to2. The three-dimensional printing system of wherein the light engine includes one or more of a laser module claim 1 , an ultraviolet light ...

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Номер записи: 95
02-01-2020 дата публикации

Additive manufacturing on unconstrained freeform surfaces

Номер: US20200001540A1
Автор: Michael C. Mcalpine, Zhijie Zhu
Принадлежит: University of Minnesota

Systems and techniques are described for additive manufacturing, e.g., 3D printing, a component on an unconstrained freeform build surface. The systems and techniques may allow determining a 3D trajectory and/or deformation of a target deposition region on the build surface by determining a relative location of at least one registration feature on the build surface. Control circuitry may control, based on the 3D trajectory and/or deformation and based on a build model of the component, at least one dispenser to cause dispensing of at least one composition from the at least one dispenser in a predetermined pattern on or adjacent to the target deposition region. The predetermined pattern of the composition defines at least one portion of the component.

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Номер записи: 96
02-01-2020 дата публикации

ADDITIVE MANUFACTURING APPARATUS AND METHOD

Номер: US20200001541A1
Автор: Aanæs Henrik, Eiríksson Eypór Rúnar, Hansen Hans Nørgaard, Pedersen David Bue
Принадлежит:

An additive manufacturing apparatus for building a product according to a planned geometry by successive solidification of a radiation-curable fluid in a solidification layer extending in a vertical direction from a surface of the fluid to a surface of the product. The apparatus includes: a vat holding the fluid; a support holding the product; a mechanism to control feeding of fluid to the solidification layer; a curing radiation source to generate a 2D exposure pattern of curing radiation in the solidification layer. The exposure pattern is defined by a curing radiation pattern geometry and/or curing radiation intensity. A radiation sensor receives radiation from the solidification layer. The radiation sensor generates a sensor signal having information indicative of a solidification process status. A control system is connected to the feed control mechanism and the curing radiation source. The control system receives the sensor signal and responsive thereto adjusts parameters controlling the solidification in the solidification layer. 1. Additive manufacturing apparatus for building a product according to a planned geometry by successive solidification of a radiation-curable fluid in a solidification layer , the solidification layer extending in a vertical direction from a fluid surface of the radiation-curable fluid to a work piece surface of the product , the apparatus comprising:a vat for holding the radiation-curable fluid;a work piece support for holding the product during building;a feed control mechanism adapted for controlling feeding of radiation-curable fluid to the solidification layer;a curing radiation source adapted for generating a two-dimensional exposure pattern of curing radiation in the solidification layer, wherein the exposure pattern is defined by a curing radiation pattern geometry and/or curing radiation intensity;a radiation sensor arranged to receive radiation from the solidification layer, wherein the radiation sensor is configured to ...

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Номер записи: 97
02-01-2020 дата публикации

MULTI-FILAMENT THREE-DIMENSIONAL PRINTING

Номер: US20200001590A1
Автор: Arreola Carlos Fernandez, Goodman Taylor S., Holland Samuel, Palmer Mark, Rand Kevin C., Waller Mark
Принадлежит:

An extruder of a three-dimensional printer may be coupled with one or more filament tubes, each filament tube having its own supply of filament. The extruder may include a drive gear rotatable in a first direction to advance a filament from a filament tube toward at least one extrusion opening defined by the extruder and rotatable in a second direction, opposite the first direction, to advance another filament from a different filament tube toward the at least one extrusion opening defined by the extruder. Also, as one filament is advanced by the drive gear, another filament may be retracted by the drive gear to improve the switching of filaments in a three-dimensional printing process. The extruder may work in conjunction with a filament supply-side drive system that feeds filament into one or more filament tubes, reducing a pull force exerted by the drive gear of the extruder. 1. A system for a three-dimensional printer , the system comprising:a first drive system including a first drive gear positioned upstream from an extruder of the three-dimensional printer to advance a filament of build material toward the extruder;a second drive system including a second drive gear positioned in the extruder of the three-dimensional printer to advance the filament through the extruder during a printing process;a sensor configured to sense an attribute of one or more of the first drive system and the second drive system; anda controller configured to receive a signal related to the sensed attribute from the sensor and to dynamically adjust one or more of the first drive system and the second drive system to drive the filament according to the sensed attribute.2. The system of claim 1 , wherein the controller changes rotational speed of one or more of the first drive gear and the second drive gear when dynamically adjusting one or more of the first drive system and the second drive system to drive the filament according to the sensed attribute.3. The system of claim 1 , ...

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Номер записи: 98
04-01-2018 дата публикации

PROCESSING AN OBJECT FOR PRINTING

Номер: US20180001681A1
Автор: Morovic Jan, Morovic Peter
Принадлежит:

A method for processing an object for printing, the object comprising a plurality of properties defined at each of a plurality of locations within the object, each property represented by a metamer set of possible combinations of proportions of at least one of a set of printing materials, the method comprising: selecting a combination of the metamer sets of a given location within an object that provides all of the plurality of properties defined for the given location. 1. A method for processing an object for printing , the object comprising a plurality of properties defined at each of a plurality of locations within the object , each property represented by a metamer set of possible combinations of proportions of at least one of a set of printing materials , the method comprising:selecting a combination of the metamer sets of a given location within an object that provides all of the plurality of properties defined for the given location.2. The method of claim 1 , wherein selecting a combination of the metamer sets of a given location comprisesif no combination exists that provides all of the plurality of properties defined for the given location, applying user-defined rules associated with each of the metamer sets for the given location to select one of the combinations.3. The method of claim 2 , wherein selecting a combination of the metamer sets of a given location comprisesif no solution to the applied user-defined rules exists, performing a manual override for the given location.4. The method of claim 3 , wherein performing a manual override compriseschanging parameters of the input object until a combination of metamer sets for a given location can be selected.5. The method of claim 1 , wherein the method further comprisesgenerating control data for printing the object from the selected combination at the given location.6. The method of claim 2 , wherein the method further comprisesif no solution to the applied user-defined rules exists, reporting the input ...

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Номер записи: 99
06-01-2022 дата публикации

DISTRIBUTED QUALITY MANAGEMENT AND CONTROL SYSTEMS AND METHODS FOR DECENTRALIZED MANUFACTURING USING BLOCKCHAIN

Номер: US20220004164A1
Автор: Godfrey Donald, Hota Rakesh, Kar Satyanarayan, Kasimsetty Vinayakumar, Rao Sujaya
Принадлежит: HONEYWELL INTERNATIONAL INC.

A method for secure transfer of an additive manufacturing design file and for process monitoring of additively manufactured articles that are manufactured in accordance with such design file includes the steps of: at an article designer located at a first location, generating the additive manufacturing design file; from the first location, sending the additive manufacturing design file to an additive manufacturing AM vendor located at a second location different from the first location; at the second location, using an additive manufacturing tool, manufacturing the article in accordance with the design file; and at the second location, and using a plurality of process monitoring devices, generating a plurality of process parameters associated with the manufacture of the article; at the second location, generating a cryptographic, distributed ledger comprising the plurality of process parameters. The ledger is generated in the manner of a block-chain. 1. A method for secure transfer of an additive manufacturing design file and for process monitoring of additively manufactured articles that are manufactured in accordance with such design file , the method comprising the steps of:at an article designer located at a first location, generating the additive manufacturing design file;from the first location, sending the additive manufacturing design file to an additive manufacturing AM vendor located at a second location different from the first location, wherein the additive manufacturing design file is sent in an encrypted manner;at the second location, using an additive manufacturing tool, manufacturing the article in accordance with the design file, wherein the additive manufacturing tool comprises a plurality of process monitoring sensors;at the second location, and using the plurality of process monitoring sensors, generating a plurality of process parameters associated with the manufacture of the article;at the second location, generating a cryptographic, ...

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Номер записи: 100