公开(公告)号：US09770869B2

公开(公告)日：2017-09-26

申请号：US14218084

申请日：2014-03-18

Applicant: Stratasys, Inc.

Inventor： James W. Comb ,  Zeiter S. Farah ,  J. Samuel Batchelder

IPC: B29C67/00 ,  G03G15/22 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G03G15/224

Abstract: A method and system for printing a three-dimensional part, which includes printing a plurality of successive layers of the three-dimensional part with the additive manufacturing system based on bitslices in a bitslice stack, measuring surface heights of the successive layers after each of the successive layers are printed, determining differences between the measured surface heights and predicted stack heights of the bitslices, identifying one or more topographical error regions based on the determined differences, and modifying the bitslice stack to compensate for the one or more topographical error regions.

公开(公告)号：US20170271843A1

公开(公告)日：2017-09-21

申请号：US15529371

申请日：2015-11-24

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  Moshe Aknin ,  Jonathan B. Hedlund

IPC: H01S5/024 ,  H01S5/042 ,  B33Y50/02 ,  H01S5/022 ,  B29C67/00 ,  B33Y30/00 ,  H01S5/40 ,  H01S5/00

CPC classification number: H01S5/02469 ,  B29C64/135 ,  B29C64/20 ,  B29C64/386 ,  B29K2105/24 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  H01L2224/48091 ,  H01S5/005 ,  H01S5/02 ,  H01S5/02212 ,  H01S5/02248 ,  H01S5/02423 ,  H01S5/042 ,  H01S5/4025 ,  H01S5/405 ,  H01L2924/00014

Abstract: A laser assembly for use with an additive manufacturing system, which includes a base block configured to be moved along a scan direction axis in the additive manufacturing system, a plurality of laser emitters preferably arranged in an array of at least two rows of two or more laser emitters. At least a portion of a heat sink assembly is configured to draw heat away from the base block and/or the laser emitters. The assembly includes a controller assembly a controller assembly configured to control a movement of the base block along the first axis and to independently control at least timing and duration of energy emitted from each laser emitter of the plurality of laser emitters as the base block moves along the first axis.

公开(公告)号：US20170192377A1

公开(公告)日：2017-07-06

申请号：US15386904

申请日：2016-12-21

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  Arun Chowdry ,  Steven A. Chillscyzn

IPC: G03G9/00

Abstract: In a method of producing a 3D part using an electrophotography-based additive manufacturing system, a plurality of layers of a powder-based material are developed using at least one electrophotography (EP) engine. The developed layers are transferred to a transfer medium. The layers on the transfer medium are dried by heating the layers without fully fusing the powder-based material to itself using a dryer. This reduces a water content of the layers. The dried layers are heated on the transfer medium to at least a fusion temperature, at which the power-based material fuses together, using a pre-transfusion heater. The dried layers are then transfused together on a build platform using a transfusion assembly to build the part in a layer-by-layer manner.

公开(公告)号：US09688027B2

公开(公告)日：2017-06-27

申请号：US14242364

申请日：2014-04-01

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  Zeiter Farah

IPC: B29C67/00 ,  G03G15/22 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C67/0088 ,  B29C64/135 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G03G15/224

Abstract: A method and system for printing a three-dimensional part, which includes rotating a transfer belt with a developed layer, scanning the developed layer on the rotating transfer belt, pressing the developed layer into contact with an intermediate build surface of the three-dimensional part retained on a moveable build platform, scanning the pressed layer on the three-dimensional part, comparing the scanned layers to detect an overlay error, and adjusting a position of the moveable build platform relative to the transfer belt to reduce the overlay error for a subsequent developed layer.

公开(公告)号：US20170100888A1

公开(公告)日：2017-04-13

申请号：US15386912

申请日：2016-12-21

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder

IPC: B29C67/00 ,  G01F1/66 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00

CPC classification number: B33Y10/00 ,  B29C64/106 ,  B29C64/20 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G01F1/661

Abstract: An additive manufacturing system that retains a print head for printing a three-dimensional part in a layer-by-layer manner using an additive manufacturing technique, where the retained print head is configured to receive a consumable material, melt the consumable material, and extrude the molten material. The system also includes a velocimetry assembly configured to determine flow rates of the molten material, and a controller assembly configured to manage the extrusion of the molten material from the print head, and to receive signals from the velocimetry assembly relating to the determined flow rates.

公开(公告)号：US09550327B2

公开(公告)日：2017-01-24

申请号：US14691328

申请日：2015-04-20

Applicant: Stratasys, Inc.

Inventor： William J. Swanson ,  Kevin C. Johnson ,  Timothy A. Hjelsand ,  J. Samuel Batchelder

IPC: B29C67/00 ,  B29C47/00 ,  B29C47/08 ,  B29C47/86 ,  B33Y30/00 ,  B29L9/00

CPC classification number: B29C67/0085 ,  B29C47/0002 ,  B29C47/0014 ,  B29C47/0852 ,  B29C47/0864 ,  B29C47/862 ,  B29C64/106 ,  B29C64/20 ,  B29C67/0055 ,  B29C2947/92571 ,  B29L2009/00 ,  B33Y30/00

Abstract: A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.

Abstract translation: 一种用于基于挤出的添加剂制造系统的液化器组件，所述液化器组件包括具有第一平均内部横截面积的下游部分和具有小于所述第一内部横截面积的第二平均内部横截面积的上游部分 横截面积，所述上游部分限定肩部，所述肩部构造成限制消耗材料的熔体弯液面的运动。

公开(公告)号：US20160263830A1

公开(公告)日：2016-09-15

申请号：US15140728

申请日：2016-04-28

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  William J. Swanson ,  Kevin C. Johnson

IPC: B29C67/00 ,  B29C47/80

CPC classification number: B29C67/0085 ,  B29C47/802 ,  B29C64/106 ,  B29C64/20 ,  B29K2105/0067 ,  B33Y30/00

Abstract: A liquefier assembly for use in an additive manufacturing system, which includes a rigid member having a gap, a liquefier tube operably disposed in the gap, one or more heater assemblies disposed in the gap in contact with the liquefier tube, and configured to heat the liquefier tube in a zone-by-zone manner, preferably one or more thermal resistors disposed in the gap between the rigid member and the heater assemblies, and preferably one or more sensors configured to operably measure pressure within the liquefier tube. The one or more heater assemblies may be operated to provide dynamic heat flow control.

公开(公告)号：US20150266242A1

公开(公告)日：2015-09-24

申请号：US14218084

申请日：2014-03-18

Applicant: Stratasys, Inc.

Inventor： James W. Comb ,  Zeiter S. Farah ,  J. Samuel Batchelder

IPC: B29C67/00

CPC classification number: B29C64/386 ,  B29C64/106 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G03G15/224

Abstract: A method and system for printing a three-dimensional part, which includes printing a plurality of successive layers of the three-dimensional part with the additive manufacturing system based on bitslices in a bitslice stack, measuring surface heights of the successive layers after each of the successive layers are printed, determining differences between the measured surface heights and predicted stack heights of the bitslices, identifying one or more topographical error regions based on the determined differences, and modifying the bitslice stack to compensate for the one or more topographical error regions.

Abstract translation: 一种用于打印三维部分的方法和系统，其包括基于比特片堆叠中的比特，利用添加剂制造系统打印多个连续的三维部分层，测量每个部分之后的连续层的表面高度 打印连续的层，确定测量的表面高度和位图的预测堆叠高度之间的差异，基于确定的差异识别一个或多个地形误差区域，以及修改位片堆栈以补偿一个或多个地形误差区域。

公开(公告)号：US20150158691A1

公开(公告)日：2015-06-11

申请号：US14626349

申请日：2015-02-19

Applicant: Stratasys, Inc.

Inventor： Dominic F. Mannella ,  William J. Swanson ,  Kevin C. Johnson ,  J. Samuel Batchelder

IPC: B65H55/02 ,  B65H57/12

CPC classification number: B65H55/02 ,  B33Y30/00 ,  B65H49/08 ,  B65H55/046 ,  B65H57/12 ,  B65H57/18

Abstract: A payout tube for enabling payout of a consumable filament from a consumable assembly that is configured for use with an additive manufacturing system, the payout tube comprising a tip end having an inlet opening, a base end having an outlet opening, and a tube body having an average effective outer diameter that is substantially greater than an effective inner diameter of the inlet opening.

Abstract translation: 一种用于能够从被配置为与添加剂制造系统一起使用的可消耗组件支付消耗性细丝的放出管，所述分配管包括具有入口开口的顶端，具有出口开口的基端和具有出口开口的管体， 平均有效外径基本上大于入口开口的有效内径。

公开(公告)号：US20140265040A1

公开(公告)日：2014-09-18

申请号：US13840538

申请日：2013-03-15

Applicant: STRATASYS, INC.

Inventor： J. Samuel Batchelder

IPC: B29C67/00

CPC classification number: B29C67/0055 ,  B29C64/106 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01F1/661

Abstract: An additive manufacturing system that retains a print head for printing a three-dimensional part in a layer-by-layer manner using an additive manufacturing technique, where the retained print head is configured to receive a consumable material, melt the consumable material, and extrude the molten material. The system also includes a velocimetry assembly configured to determine flow rates of the molten material, and a controller assembly configured to manage the extrusion of the molten material from the print head, and to receive signals from the velocimetry assembly relating to the determined flow rates.

Abstract translation: 一种添加剂制造系统，其使用添加剂制造技术以层叠的方式保持用于印刷三维部分的打印头，其中保持的打印头构造成接收消耗材料，熔化消耗材料并拉伸 熔融材料。 该系统还包括被配置为确定熔融材料的流速的测速组件，以及被配置为管理来自打印头的熔融材料挤压的控制器组件，以及接收与所确定的流速相关的来自测速组件的信号。