公开(公告)号：US20210323225A1

公开(公告)日：2021-10-21

申请号：US17228876

申请日：2021-04-13

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Eric M. Innes

IPC: B29C64/135 ,  B29C64/232 ,  B29C64/245 ,  B29C64/40 ,  B29C64/393 ,  B29C64/268 ,  B29C64/286 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printing system includes a resin vessel containing photocurable resin, an imaging system, a build plate with a plate upper surface, a vertical positioner, a volume compensator (VC), and a controller. The controller is configured to: (a) operate the VC to maintain a resin upper surface proximate to a build plane, (b) operate the imaging system and the vertical positioner to generate a plurality of base layers upon the plate upper surface, (c) receive a first signal responsive to vertical motion of the resin upper surface, (d) analyze the first signal to determine a metric that is related to an extent of immersion of the plate upper surface below the resin upper surface during formation of the base layers, and (e) operate the imaging system and the vertical positioner to begin generation of the 3D article after the metric has reached a predefined threshold.

公开(公告)号：US11034083B2

公开(公告)日：2021-06-15

申请号：US16239041

申请日：2019-01-03

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow

IPC: B29C64/135 ,  B29C64/40 ,  B29C64/35 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/223 ,  B29C64/393 ,  B33Y50/02

Abstract: A three dimensional printing system includes a resin vessel, a light engine, a movement mechanism, a support fixture, and a controller. The resin vessel is for containing a photocurable resin and has a lower portion with a transparent sheet. The light engine is configured to selectively project radiation up through the transparent sheet and over a build plane. The support fixture is coupled to the movement mechanism and has a lower rim that surrounds a central opening and faces the transparent sheet. The controller is configured to: (1) operate the movement mechanism to position the rim at an operating distance from the transparent sheet, (2) operate the light engine and the movement mechanism to form a particle trapping sheet that spans the central opening, and (3) operate the light engine and the movement mechanism to form the three dimensional article.

公开(公告)号：US10828833B2

公开(公告)日：2020-11-10

申请号：US15926208

申请日：2018-03-20

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Mengshen Wu

IPC: B29C64/245 ,  B33Y30/00 ,  B29C64/124 ,  B33Y10/00

Abstract: A support fixture is provided for forming a three dimensional article of manufacture onto a lower build surface thereof. The formation of the three dimensional article occurs in a resin vessel containing photocurable resin. The resin vessel includes a transparent sheet that forms a lower bound for the resin. The support fixture includes an interface fixture and a replaceable support. The interface fixture includes an upper portion having alignment and gripping features, a lower portion surrounding a central opening and including a plurality of attachment features, and a side wall coupling the upper and lower portions. The replaceable support includes a planar portion having a lower surface (providing the lower build surface) for attachment of the three dimensional article of manufacture and a peripheral support portion including complementary attachment features engaging the attachment features when the peripheral support portion is mounted to the lower portion of the interface fixture.

公开(公告)号：US20180229432A1

公开(公告)日：2018-08-16

申请号：US15807170

申请日：2017-11-08

Applicant: 3D Systems, Inc.

Inventor： Ben Wynne ,  Andrew Enslow ,  Evan Kuester

IPC: B29C64/20 ,  B29C64/393 ,  B29C64/153 ,  B29C64/227 ,  B29C64/124 ,  B29C64/35

CPC classification number: B29C64/20 ,  B29C64/124 ,  B29C64/129 ,  B29C64/153 ,  B29C64/227 ,  B29C64/245 ,  B29C64/35 ,  B29C64/379 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A three dimensional printing system includes a print engine, a fluid processing station, a fixture, a transport mechanism, and a controller. The fluid processing station includes a fluid injector port coupled to a fluid source. The fixture has a lower portion with a lower face and a first fluid conduit coupled to the lower face. The controller is configured to: (a) Operate the print engine to form a three dimensional article of manufacture onto the lower face and thereby defining an internal cavity and an inlet port that couples the internal cavity to the first fluid conduit of the fixture. (c) Transfer the fixture to the fluid processing station. (d) Couple the fluid injector port of the fluid processing station to the first fluid conduit of the fixture. (e) Operate the fluid source to inject fluid out of the fluid injector port and into the internal cavity.

公开(公告)号：US11938679B2

公开(公告)日：2024-03-26

申请号：US17848479

申请日：2022-06-24

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Darold Tejero Lazatin

IPC: B29C64/35 ,  B29C64/232 ,  B29C64/255 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B29C64/35 ,  B29C64/232 ,  B29C64/255 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three-dimensional (3D) printing system includes a resin vessel, a fabrication subsystem, a waste collection subsystem, and a controller. The resin vessel is configured to contain photocurable resin. The fabrication subsystem is configured to form the 3D article with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate, a build plate support structure, and a vertical movement mechanism. The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.

公开(公告)号：US20230415418A1

公开(公告)日：2023-12-28

申请号：US17848479

申请日：2022-06-24

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Darold Tejero Lazatin

IPC: B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/232

CPC classification number: B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/232

Abstract: A three-dimensional (3D) printing system includes a resin vessel, a fabrication subsystem, a waste collection subsystem, and a controller. The resin vessel is configured to contain photocurable resin. The fabrication subsystem is configured to form the 3D article with layer-by-layer selective curing of the photocurable resin. The fabrication subsystem includes a build plate, a build plate support structure, and a vertical movement mechanism. The waste collection subsystem is attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction. The controller is configured to (a) operate the vertical movement mechanism to translate the build plate support structure to a lower position and (b) operate the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.

公开(公告)号：US11446866B2

公开(公告)日：2022-09-20

申请号：US17155140

申请日：2021-01-22

Applicant: 3D Systems, Inc.

Inventor： Ben Wynne ,  Andrew Enslow ,  Evan Kuester

IPC: B29C64/20 ,  B33Y40/00 ,  B29C64/379 ,  B29C64/124 ,  B29C64/35 ,  B29C64/129 ,  B33Y10/00 ,  B29C64/245 ,  B29C64/153 ,  B29C64/393 ,  B29C64/227 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three dimensional printing system includes a print engine, a fluid processing station, a fixture, a transport mechanism, and a controller. The fluid processing station includes a fluid injector port coupled to a fluid source. The fixture has a lower portion with a lower face and a first fluid conduit coupled to the lower face. The controller is configured to: (a) Operate the print engine to form a three dimensional article of manufacture onto the lower face and thereby defining an internal cavity and an inlet port that couples the internal cavity to the first fluid conduit of the fixture. (c) Transfer the fixture to the fluid processing station. (d) Couple the fluid injector port of the fluid processing station to the first fluid conduit of the fixture. (e) Operate the fluid source to inject fluid out of the fluid injector port and into the internal cavity.

公开(公告)号：US10960602B2

公开(公告)日：2021-03-30

申请号：US15926148

申请日：2018-03-20

Applicant: 3D Systems, Inc.

Inventor： Christopher Tanner ,  Andrew Enslow ,  Ben Wynne ,  Robert Mueller ,  James Pingel ,  Martin Alan Johnson

IPC: B29C64/129 ,  B33Y30/00 ,  B29C64/20 ,  B29C64/393 ,  B29C64/35 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/245 ,  B29C64/40 ,  B33Y10/00 ,  B29C64/227 ,  B29C64/153

Abstract: A three dimensional printing system includes a resin vessel, a light engine, a movement mechanism, a fixture, and a controller. The resin vessel is for containing a photocurable resin and has a lower portion with a transparent sheet. The light engine is configured to selectively project radiation up through the transparent sheet and over a build plane. The fixture is coupled to the movement mechanism and has a lower face that faces the transparent sheet. The controller is configured to operate the light engine to solidify a particle trapping sheet proximate to the build plane thereby trapping particles that extend upwardly from the transparent sheet into the build plane.

公开(公告)号：US10926462B2

公开(公告)日：2021-02-23

申请号：US15807170

申请日：2017-11-08

Applicant: 3D Systems, Inc.

Inventor： Ben Wynne ,  Andrew Enslow ,  Evan Kuester

IPC: B29C64/20 ,  B33Y40/00 ,  B29C64/379 ,  B29C64/124 ,  B29C64/35 ,  B29C64/129 ,  B33Y10/00 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/393 ,  B29C64/227 ,  B33Y50/02

Abstract: A three dimensional printing system includes a print engine, a fluid processing station, a fixture, a transport mechanism, and a controller. The fluid processing station includes a fluid injector port coupled to a fluid source. The fixture has a lower portion with a lower face and a first fluid conduit coupled to the lower face. The controller is configured to: (a) Operate the print engine to form a three dimensional article of manufacture onto the lower face and thereby defining an internal cavity and an inlet port that couples the internal cavity to the first fluid conduit of the fixture. (c) Transfer the fixture to the fluid processing station. (d) Couple the fluid injector port of the fluid processing station to the first fluid conduit of the fixture. (e) Operate the fluid source to inject fluid out of the fluid injector port and into the internal cavity.

公开(公告)号：US10589462B2

公开(公告)日：2020-03-17

申请号：US15612239

申请日：2017-06-02

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow

IPC: B29C64/20 ,  B33Y30/00 ,  B29C64/245 ,  B29C64/124

Abstract: A support fixture is provided for forming a three dimensional article of manufacture onto a lower build surface thereof. The formation occurs in a resin vessel containing photocurable resin. The resin vessel includes a transparent sheet that forms a lower bound for the resin. The support fixture includes a lower planar portion, an upper portion, and a side wall coupling the lower planar portion to the upper portion. The lower planar portion defines a dense array of small openings that minimize a fluid drag of lateral resin motion when the lower build surface is proximate to the transparent sheet. The upper portion is for providing alignment and support within the three dimensional printing system. A plurality of large openings formed along the side wall that individually have a cross sectional area that is equal to a combined cross sectional area of a plurality of the small openings.