公开(公告)号：US20240326334A1

公开(公告)日：2024-10-03

申请号：US18612145

申请日：2024-03-21

申请人： 3D Systems, Inc.

发明人： Akarsh Sivaprasad ,  David Sabo ,  Grant Draper

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

CPC分类号： B29C64/25 ,  B29C64/124 ,  B29C64/255 ,  B29C64/264 ,  B29C64/364 ,  B33Y10/00 ,  B33Y30/00

摘要： 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

申请人： 3D Systems, Inc.

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

IPC分类号： B29C64/232 ,  B29C64/124 ,  B29C64/236 ,  B29C64/241 ,  B29C64/245 ,  B29C64/255 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

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

摘要： 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：US12018165B2

公开(公告)日：2024-06-25

申请号：US18326535

申请日：2023-05-31

申请人： 3D Systems, Inc.

发明人： Khalil Moussa

IPC分类号： B33Y10/00 ,  B29C64/112 ,  B29C64/124 ,  B33Y70/00 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107 ,  C09D11/328 ,  C09D11/38 ,  B29K33/00 ,  B29K105/00

CPC分类号： C09D11/38 ,  B29C64/112 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107 ,  C09D11/328 ,  B29K2033/12 ,  B29K2105/0032

摘要： In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (Dp), a critical energy (Ec), and a print through depth (DPT) at the wavelength λ of less than or equal to 2×Dp.

公开(公告)号：US11938679B2

公开(公告)日：2024-03-26

申请号：US17848479

申请日：2022-06-24

申请人： 3D Systems, Inc.

发明人： Andrew Enslow ,  Darold Tejero Lazatin

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

CPC分类号： B29C64/35 ,  B29C64/232 ,  B29C64/255 ,  B33Y30/00 ,  B33Y40/00

摘要： 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：US20240091412A1

公开(公告)日：2024-03-21

申请号：US17949484

申请日：2022-09-21

申请人： 3D SYSTEMS, INC.

发明人： Pingyong Xu ,  Michael Brady ,  Jeff Banning ,  Sarah Patty ,  Peter Scott Turner ,  Monica Keilsohn

IPC分类号： A61L27/52 ,  A61L27/18 ,  A61L27/26 ,  B33Y80/00 ,  C08L71/02

CPC分类号： A61L27/52 ,  A61L27/18 ,  A61L27/26 ,  B33Y80/00 ,  C08L71/02 ,  A61L2400/16

摘要： Curable compounds, hydrogels, build materials, and methods of 3D printing are described herein. In some embodiments, a build material for 3D printing described herein comprises one or more compounds having the structure(s) of Formula (I) and/or Formula (II) herein. Such a build material may also comprise an additional acrylate component and water.

公开(公告)号：US20240059909A1

公开(公告)日：2024-02-22

申请号：US18448433

申请日：2023-08-11

申请人： 3D Systems, Inc.

发明人： Meisam Shir MOHAMMADI

IPC分类号： C09D5/18 ,  B33Y70/00 ,  C09D7/63 ,  C09D7/65 ,  C09D155/02 ,  C09D167/02 ,  C09D167/04 ,  C09D169/00 ,  C09D175/04 ,  C09D177/04 ,  C09K21/10 ,  C09K21/12 ,  C09K21/14

CPC分类号： C09D5/18 ,  B33Y70/00 ,  C09D7/63 ,  C09D7/65 ,  C09D155/02 ,  C09D167/02 ,  C09D167/04 ,  C09D169/00 ,  C09D175/04 ,  C09D177/04 ,  C09K21/10 ,  C09K21/12 ,  C09K21/14

摘要： Compositions for additive manufacturing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed or formed from the compositions. The compositions may also impart desirable mechanical properties to the articles. In some embodiments, a composition comprises a sinterable powder or a thermoplastic polymer in an amount of 10-99 wt. %, based on the total weight of the composition, and an oxygen-deprivation additive in an amount of up to 25 wt. %, up to 15 wt. %, or up to 10 wt. % based on the total weight of the composition. The oxygen-deprivation additive comprises at least one of (a) an organophosphorus component, (b) a heptazine or melamine-derived component, and (c) a polymeric organobromine component.

公开(公告)号：US11878350B2

公开(公告)日：2024-01-23

申请号：US17487211

申请日：2021-09-28

申请人： 3D Systems, Inc.

发明人： Jose Julio Doval

IPC分类号： B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/342 ,  B22F12/00 ,  B22F10/28 ,  B23K26/16 ,  B23K26/06 ,  B23K26/08

CPC分类号： B22F12/70 ,  B22F10/28 ,  B22F12/38 ,  B23K26/16 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/0604 ,  B23K26/083

摘要： A three-dimensional (3D) print engine includes (A) a plurality of walls laterally defining a build chamber, (B) a build box including a build plate, (C) a powder dispenser, (D) a beam system for fusing layers of powder, (E) a peripheral plate disposed between the build plate and the plurality of walls and having an upper surface, (F) a gas inlet that ejects a gas flow stream that passes over the build plate and the peripheral plate, (G) a gas outlet that receives the gas flow stream, (H) a plurality of projecting structures mounted to and extending above the upper surface of the peripheral plate, and (I) a gas handling system coupled to the gas inlet and gas outlet. The plurality of projecting structures shape the flow field of the gas flow stream to provide a more uniform velocity of gas flow velocities above the build plane.

公开(公告)号：US20230415418A1

公开(公告)日：2023-12-28

申请号：US17848479

申请日：2022-06-24

申请人： 3D Systems, Inc.

发明人： Andrew Enslow ,  Darold Tejero Lazatin

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

CPC分类号： B29C64/35 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/232

摘要： 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：US20230321917A1

公开(公告)日：2023-10-12

申请号：US18122524

申请日：2023-03-16

申请人： 3D Systems, Inc.

发明人： Alexander Gabriel Steinberg ,  Rex Thomas Alexandre

IPC分类号： B29C64/393

CPC分类号： B29C64/393 ,  B33Y30/00

摘要： Systems and processes for additive manufacturing are set forth for constructing an object by making successive discrete deposits of unitary masses of a feedstock materials at specific locations as determined by a digital data model for the object. In accordance with some embodiments, the deposits are non-continuous and performed in a sequence such that consecutively ordered deposit actions occur at deposit locations that are not physically adjacent, enabling control of thermal behaviors as a build progresses. In accordance with some embodiments, the sequencing of discrete depositing actions may be agilely rearranged to change temperatures and temperature gradients exhibited by deposited materials.

公开(公告)号：US11772328B2

公开(公告)日：2023-10-03

申请号：US17086049

申请日：2020-10-30

申请人： 3D Systems, Inc.

发明人： Evgeny Korol

IPC分类号： B29C64/364 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/124 ,  B29C64/264

CPC分类号： B29C64/364 ,  B29C64/124 ,  B29C64/245 ,  B29C64/264 ,  B33Y30/00

摘要： A three-dimensional printing system includes a support plate, a transparent sheet, gas pressure source, and a conduit. The support plate includes a transparent central portion and defines a gas inlet and a gas outlet. The transparent sheet overlays the transparent central portion, the gas inlet, and the gas outlet of the support plate. A central chamber is defined between the transparent sheet and the support plate. The gas pressure source is coupled to the gas inlet through the conduit. An input fluid flow resistance Li is defined from the gas pressure source to the central chamber. An output fluid flow resistance Lo is defined out through the gas outlet and to an outside location. A ratio of Li to Lo is sufficient to allow a stable control of a physical configuration of the central unsupported portion of the transparent sheet above the support plate.