公开(公告)号：US11207833B2

公开(公告)日：2021-12-28

申请号：US16699929

申请日：2019-12-02

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/25 ,  B29C64/264 ,  B29C64/245 ,  G03F7/20 ,  B33Y30/00

Abstract: A method of assembling a three-dimensional printing system includes providing a plurality of components, providing a plurality of spacer rings, and measurement, analysis and assembly steps. The components include a light engine, an adaptive support apparatus, a plurality of elongate struts, and a support plate. The measurement, analysis and assembly steps include (1) measuring a scale factor for the light engine, (2) determining a selection of one or more of the spacer rings based upon the measured scale factor, and (3) assembling the components with the determined selection of one or more spacer rings.

公开(公告)号：US20240269926A1

公开(公告)日：2024-08-15

申请号：US18436227

申请日：2024-02-08

Applicant: 3D Systems, Inc.

Inventor： David Sabo ,  Grant Draper ,  Curtis J. Behrend ,  Nickolas M. Clinton

IPC: B29C64/232 ,  B29C64/124 ,  B29C64/241 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/232 ,  B29C64/124 ,  B29C64/241 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printing system is configured to print a 3D article in a layer-by-layer manner and includes a vertical beam, an elevator, and a build platform. The elevator is configured for vertical translation along the vertical beam and includes an upper support and a lower support. The lower support includes at least one elevator actuator extending upward from an upper side. The upper support has a lower side including a datum surface in engagement with the actuator. The elevator actuator is configured to modulate a position of the upper side of the upper support. The build platform includes a build plate coupled below a support plate. The build plate has a lower side for formation of the 3D article. The support plate has a lower side that engages the upper side of the upper support of the elevator to support the build platform.

公开(公告)号：US20220379566A1

公开(公告)日：2022-12-01

申请号：US17876239

申请日：2022-07-28

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/264 ,  B29C64/245 ,  B29C64/255 ,  B29C64/135

Abstract: A three-dimensional printing system includes a support plate and a resin vessel. The support plate defines a central opening and an upper surface. The resin vessel is disposed upon the upper surface of the support plate and includes a substructure and a transparent sheet. The substructure includes a vertical wall and a tension ring that extends inwardly and downwardly from the vertical wall. The tension ring impinges downwardly upon an upper surface of the transparent sheet and tensions the transparent sheet.

公开(公告)号：US11491712B2

公开(公告)日：2022-11-08

申请号：US17474683

申请日：2021-09-14

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner ,  David Sabo

IPC: B29C64/135 ,  B29C64/277 ,  B29C64/255 ,  B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/393 ,  B33Y50/02 ,  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：US20210402679A1

公开(公告)日：2021-12-30

申请号：US17474683

申请日：2021-09-14

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner ,  David Sabo

IPC: B29C64/135 ,  B29C64/255 ,  B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/277

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：US11186040B2

公开(公告)日：2021-11-30

申请号：US16699925

申请日：2019-12-02

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/264 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/255 ,  B29C64/393

Abstract: A three dimensional printer includes a projector, an adaptive support apparatus, a resin support apparatus, and a plurality of vertical struts. The projector includes a projection lens module which includes an optical housing that contains a series of lenses for projecting an image from the projector onto a build plane. The projection lens module includes a laterally extending flange having an upwardly facing flange surface. The adaptive support apparatus includes a downward facing surface in facing relation with the upward facing flange surface. The resin support apparatus is configured to contain resin and includes a transparent sheet and a downward facing surface. The transparent sheet defines a lower bound for the resin proximate to a build plane. The plurality of vertical struts couple an upward-facing surface of the adaptive support apparatus to the downward-facing surface of the resin support apparatus.

公开(公告)号：US20210008797A1

公开(公告)日：2021-01-14

申请号：US16926264

申请日：2020-07-10

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/232 ,  B29C64/25 ,  B29C64/245 ,  B29C64/255 ,  B29C64/124

Abstract: A three-dimensional printing system includes a vertical support beam, a resin vessel assembly coupled to the vertical support beam and including a resin vessel, and a support tray positioning system. The support tray positioning system includes a support tray elevator, a lead screw nut, a motorized lead screw, an intermediate nut, and a linear bearing. The motorized lead screw engages the lead screw nut to raise and lower the support tray elevator. The linear bearing constrains motion of the support tray elevator to vertical motion. The support tray elevator, the intermediate nut, and the lead screw nut interlock to constrain rotational motion of the lead screw nut with respect to the support tray elevator while allowing for two dimensional lateral motion of the lead screw nut with respect to the support tray elevator to accommodate mechanical tolerances of the lead screw with respect to the linear bearing.

公开(公告)号：US20200307100A1

公开(公告)日：2020-10-01

申请号：US16830644

申请日：2020-03-26

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/393 ,  B29C64/135 ,  B29C64/245 ,  B29C64/264 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional printing system includes a support plate and a resin vessel. The support plate defines a central opening and an upper surface. The resin vessel is disposed upon the upper surface of the support plate and includes a substructure and a transparent sheet. The substructure includes a vertical wall and a tension ring that extends inwardly and downwardly from the vertical wall. The tension ring impinges downwardly upon an upper surface of the transparent sheet and tensions the transparent sheet.

公开(公告)号：US20250001676A1

公开(公告)日：2025-01-02

申请号：US18753118

申请日：2024-06-25

Applicant: 3D Systems, Inc.

Inventor： Nickolas M. Clinton ,  Charles W. Hull ,  Grant Draper ,  David Sabo ,  Samuel David Rohrbach

IPC: B29C64/124 ,  B29C64/218 ,  B29C64/236 ,  B29C64/245 ,  B29C64/255 ,  B29K105/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

Abstract: A 3D printing system includes a build vessel, a carriage, and a light engine. The build vessel includes a vessel base having a downward extending tension ring that tensions a transparent sheet. The transparent sheet laterally bounds a build plane that is defined over orthogonal lateral axis X and Y. The carriage includes a roller that extends between two opposing sides of the tension ring. The roller exerts an upward force on the transparent sheet and the two opposing sides of the tension ring. The vertical constraint of the roller biased against the tension ring provides a location and improved planarity of a supported portion of the transparent sheet adjacent to the roller. The light engine light engine is configured to selectively apply radiation to a projected area of the build plane through the supported portion of the transparent sheet.

公开(公告)号：US11571853B2

公开(公告)日：2023-02-07

申请号：US16701613

申请日：2019-12-03

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/245 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C33/38 ,  B29C64/227 ,  B33Y99/00

Abstract: A three-dimensional printer includes a light engine, a support plate, and a resin vessel. The light engine is configured to selectively harden photocurable resin at a build plane in the resin vessel. The support plate is formed from cast metal and is in a fixed vertical relation to the light engine. The support plate includes an upper side with an upstanding ridge. The upstanding ridge has an upper datum surface that has been machined to a controlled height. The support plate also includes a separately formed ring disposed upon the upper datum surface. The separately formed ring defines a crest of the upstanding ridge. The resin vessel includes a transparent sheet that defines a lower bound for resin contained in the resin vessel. The transparent sheet impinges upon the crest to define a vertical location of the build plane in relation to the light engine.