公开(公告)号：US20250001688A1

公开(公告)日：2025-01-02

申请号：US18818073

申请日：2024-08-28

Applicant: 3D Systems, Inc.

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

IPC: B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/393

Abstract: A 3D printing system includes a machine chassis, a build vessel, a carriage, an actuator, a build platform, and a light engine. The build vessel is supported by the machine chassis and contains a photocurable liquid. The build vessel includes a downward extending tension ring that tensions a transparent sheet and defines a datum plane. The carriage supports a glass plate and a roller. The carriage is configured to press the roller against the two opposing sides of the tension ring. The actuator is configured to vertically position an upper surface of the glass plate in two positions including (U) an upper position at which the upper surface of the glass plate is coplanar with the datum plane and (L) a lower position in which the upper surface of the glass is spaced away from the datum plane.

公开(公告)号：US20240269932A1

公开(公告)日：2024-08-15

申请号：US18436246

申请日：2024-02-08

Applicant: 3D Systems, Inc.

Inventor： David Sabo ,  Grant Draper ,  Curtis J. Behrend

IPC: B29C64/393 ,  B29C64/129 ,  B29C64/232 ,  B29C64/241 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/129 ,  B29C64/232 ,  B29C64/241 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of manufacturing a 3D article includes operating a 3D printing system including an elevator coupled to a vertical movement mechanism, and a distance sensor. The elevator includes an elevator actuator. The vertical movement mechanism is coupled to the elevator. The build platform includes a build plate having a lower surface. The method includes loading the build platform onto the elevator, operating the vertical movement mechanism to lower the lower surface of the build platform into a measurement range with the distance sensor, scanning the distance sensor along a lateral axis, concurrent with scanning the distance sensor, receiving a signal from the distance sensor indicative of a plurality of vertical locations along the lateral axis of the lower surface of the build platform, and operating the elevator actuator to adjust a height of the lower surface of the build platform.

公开(公告)号：US20250001675A1

公开(公告)日：2025-01-02

申请号：US18753010

申请日：2024-06-25

Applicant: 3D Systems, Inc.

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

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

Abstract: A 3D printing system includes a machine chassis, a vessel support, a gas pressure source, a build vessel, a light engine, and a lateral movement mechanism. The build vessel is supported by the vessel support and includes a transparent sheet. The vessel support includes a carriage having a top surface. The carriage is configured to be positioned along a lateral X-axis under the transparent sheet. The carriage defines an optical path and a fluid channel that at least partially surrounds the optical path. The gas pressure source is coupled to the fluid channel. Gas flowing from the gas pressure source and out of the fluid channel is configured to maintain a vertical spacing between the top surface of the carriage and the transparent sheet. The lateral movement mechanism translates and positions the carriage and light engine together along the lateral X-axis.

公开(公告)号：US20240326334A1

公开(公告)日：2024-10-03

申请号：US18612145

申请日：2024-03-21

Applicant: 3D Systems, Inc.

Inventor： Akarsh Sivaprasad ,  David Sabo ,  Grant Draper

IPC: B29C64/25 ,  B29C64/124 ,  B29C64/255 ,  B29C64/264 ,  B29C64/364 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/25 ,  B29C64/124 ,  B29C64/255 ,  B29C64/264 ,  B29C64/364 ,  B33Y10/00 ,  B33Y30/00

Abstract: A three-dimensional (3D) printing includes a rigid base, a build vessel supported on the rigid base, and an imaging module. The build vessel includes a lower frame structure, a transparent plate supported by the lower frame structure, a transparent sheet supported above the transparent plate, a vented housing supported by the lower frame structure, a desiccant disposed within the vented housing, and a vessel wall coupled to the lower frame structure. A fixed or variable fluidic region is defined between the transparent plate and the transparent sheet. The vented housing includes openings fluidically communicating with the fluidic region to allow the desiccant to deplete vapor from the fluidic region. The vessel wall and transparent sheet are configured to provide an upward facing reservoir. The imaging module is supported by the rigid base and configured to selectively image the photocurable liquid over a build plane above the transparent sheet.

公开(公告)号：US20240269927A1

公开(公告)日：2024-08-15

申请号：US18436456

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 ,  B29C64/236 ,  B29C64/241 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/232 ,  B29C64/124 ,  B29C64/236 ,  B29C64/241 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of manufacturing a 3D article includes providing a 3D printing system including a rigid base with a vertical beam, an elevator for translation along the vertical beam, the elevator containing an elevator actuator and a force sensor, a vertical movement mechanism, a build platform including a build plate having a lower surface, a build vessel containing photocurable resin, and a controller. The method includes loading the build platform onto the elevator, operating the vertical movement mechanism to translate the lower surface of the build plate through the resin, the photocurable resin exerting a torque upon the elevator, receiving a signal from the force sensor, operating the controller to compute a force-induced angular discrepancy between the lower surface of the build plate and the horizontal plane, and operating the elevator actuator according to the angular discrepancy to level the lower surface of the build plate.

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：US11760004B2

公开(公告)日：2023-09-19

申请号：US17734318

申请日：2022-05-02

Applicant: 3D Systems, Inc.

Inventor： Daniel Alonzo ,  David Sabo ,  Michael W. Munro

IPC: B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/35 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build plate, a plate support, a hook subsystem, an elevator subsystem, an imaging subsystem, and a controller. The build plate has an upper surface and extends from a proximal end to a distal end. The hook subsystem includes a hook. The controller is configured to: (a) Operate the elevator subsystem and the imaging subsystem to fabricate the 3D article. (b) Operate the elevator subsystem to raise the 3D article above photocurable resin in the resin vessel. (c) Operate the hook subsystem to configure the hook to be engaged with the proximal end of the build plate. (d) Operate the elevator subsystem to impart a vertical separation distance between the proximal and distal ends of the build plate. The vertical separation distance defines an angular tilt of the 3D article to facilitate draining of residual photocurable.

公开(公告)号：US11697247B2

公开(公告)日：2023-07-11

申请号：US16926264

申请日：2020-07-10

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/232 ,  B29C64/25 ,  B29C64/255 ,  B29C64/124 ,  B29C64/245 ,  B33Y30/00

CPC classification number: B29C64/232 ,  B29C64/124 ,  B29C64/245 ,  B29C64/25 ,  B29C64/255 ,  B33Y30/00

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：US11590700B2

公开(公告)日：2023-02-28

申请号：US17206314

申请日：2021-03-19

Applicant: 3D Systems, Inc.

Inventor： David Sabo

IPC: B29C64/245 ,  B33Y30/00 ,  B29C64/227 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/255

Abstract: A three-dimensional printing system for fabricating or manufacturing a three-dimensional article includes a support plate, a resin containment structure, an actuator, a light engine, a support tray coupled to a movement mechanism, and a controller. The resin containment structure is supported by the support plate and includes a lower substructure that is moveably coupled to an upper substructure. The upper substructure defines an upper central opening that is closed by a transparent sheet. The lower substructure defines a lower central opening that is closed by a transparent plate. The actuator is affixed to the support plate and configured to rotate the upper substrate about the hinge between a (1) a raised position in which the transparent plate contacts and supports the transparent sheet and (2) a lowered position in which the transparent plate is out of contact with the transparent sheet.

公开(公告)号：US11433618B2

公开(公告)日：2022-09-06

申请号：US16830644

申请日：2020-03-26

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.