公开(公告)号：US20220126520A1

公开(公告)日：2022-04-28

申请号：US17499329

申请日：2021-10-12

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner

IPC: B29C64/393 ,  B29C64/124 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional printing system includes a resin vessel, a build tray, a movement mechanism, a sensor, a light engine, and a controller. The resin vessel is configured to contain photocurable (radiation curable) resin and includes a transparent sheet. The transparent sheet has an upper surface that defines a lower bound for the photocurable resin. The build tray has a lower surface configured to support the 3D article. A lower face is defined by either the build tray or the 3D article. The sensor is configured to output a signal indicative of a vertical position of the transparent sheet. The light engine is configured to image a build plane that is proximate to the upper surface of the transparent sheet. The controller is configured to control motion of the movement mechanism based upon analyzing a signal from the sensor including determining a maximum deflection of the transparent sheet during motion.

公开(公告)号：US11141911B2

公开(公告)日：2021-10-12

申请号：US16525819

申请日：2019-07-30

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner ,  David Sabo

IPC: B29C64/135 ,  B29C64/277 ,  B29C64/255 ,  B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B33Y80/00 ,  B33Y30/00 ,  B33Y10/00

Abstract: A system for manufacturing a three-dimensional article includes a resin vessel, a vertical movement mechanism, and a light engine. The resin vessel includes a lower opening closed by a transparent sheet. The vertical movement mechanism is for positioning a support tray which supports the three-dimensional article. The light engine is disposed below the transparent sheet and is configured to selectively harden layers of resin over a build plane above the transparent sheet. The light engine includes a light bar coupled to a lateral movement mechanism. The light bar includes an array of light emitting devices and a device for impinging upon the transparent sheet. The impingement maintains a proper operating distance H between the transparent sheet and the build plane.

公开(公告)号：US10479068B2

公开(公告)日：2019-11-19

申请号：US15467600

申请日：2017-03-23

Applicant: 3D Systems, Inc.

Inventor： Patrick Dunne ,  Peter Scott Turner ,  Seth Astle

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y10/00

Abstract: There is provided an additive manufacturing system comprising a vertical stage (also known as a z-stage) that moves the object being created along an axis of motion that is not perpendicular to the image plane (non-parallel to the z-axis of the image plane). By moving the build platform, upon which the additively manufactured object is being supported, along a predetermined axis of motion, such as one adapted to the dominant axis of the object design, the additive manufacturing system is capable of making larger objects, shortening build times, improving part resolution, and/or reducing the volume of photocurable material needed, among other benefits.

公开(公告)号：US20180236710A1

公开(公告)日：2018-08-23

申请号：US15899452

申请日：2018-02-20

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner

IPC: B29C64/129 ,  B29C64/277 ,  B29C64/245

CPC classification number: B29C64/129 ,  B29C64/171 ,  B29C64/245 ,  B29C64/277 ,  B29K2105/0058 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three dimensional printer includes a vessel, a light engine, a fixture, a movement mechanism, a sensor, and a controller. The vessel is for containing a liquid photocurable resin and includes a transparent sheet defining a lower surface through which the resin can be illuminated. The light engine is disposed and configured to selectively illuminate the resin through the transparent sheet. The fixture is for supporting a three dimensional article of manufacture having a lower face immersed in the resin in facing relation with the transparent sheet. The movement mechanism is configured for controllably translating the fixture to adjust a vertical height of the lower face above the transparent sheet. The sensor is configured to monitor a dynamic vertical drag force of the resin upon the three dimensional article of manufacture.

公开(公告)号：US20170274601A1

公开(公告)日：2017-09-28

申请号：US15467600

申请日：2017-03-23

Applicant: 3D Systems, Inc.

Inventor： Patrick Dunne ,  Peter Scott Turner ,  Seth Astle

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y10/00

CPC classification number: B33Y30/00 ,  B29C64/135 ,  B29C64/245 ,  B33Y10/00

Abstract: There is provided an additive manufacturing system comprising a vertical stage (also known as a z-stage) that moves the object being created along an axis of motion that is not perpendicular to the image plane (non-parallel to the z-axis of the image plane). By moving the build platform, upon which the additively manufactured object is being supported, along a predetermined axis of motion, such as one adapted to the dominant axis of the object design, the additive manufacturing system is capable of making larger objects, shortening build times, improving part resolution, and/or reducing the volume of photocurable material needed, among other benefits.