公开(公告)号：US20250153431A1

公开(公告)日：2025-05-15

申请号：US18935811

申请日：2024-11-04

Applicant: 3D Systems, Inc.

Inventor： Steven Van Cleve Korol

IPC: B29C64/209 ,  B29C64/112 ,  B29C64/232 ,  B29C64/236 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00

Abstract: A 3D printing system includes a build plate supporting a 3D article, a drop on demand piezo (DODP) printhead, a horizontal movement mechanism, a supply of phase change ink, and a controller. The controller is configured to: operate the supply and the DODP printhead to maintain a liquid state of the phase change ink, position an upper surface of the 3D article at a build plane, scan the printhead over the upper surface, and operate the DODP printhead to deliver ink drops to pixel locations upon the upper surface. The operation of the DODP printhead includes, for individual ones of the ink drops: apply a secondary waveform to a piezo actuator followed by a primary waveform to the piezo actuator to generate two drops of liquified phase change ink that merge in flight before reaching and solidifying on the upper surface.

公开(公告)号：US20250128472A1

公开(公告)日：2025-04-24

申请号：US18913055

申请日：2024-10-11

Applicant: 3D Systems, Inc.

Inventor： Eric M. Innes ,  James Howey

IPC: B29C64/259 ,  B29C64/307 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three-dimensional (3D) printing system includes a print engine and a resin vessel. The print engine includes a pair of support plates in facing relation that define a receiving space therebetween. The pair of support plates include a pair of profiled ramps and a pair of hooks extending into the receiving space. An outer surface of the resin vessel includes a plurality of fixed rollers and a pair of cam rollers. The plurality of fixed rollers are configured to partially engage the pair of profiled ramps when the resin vessel is translated into the receiving space. In response to being revolved about the horizontal axis, the pair of cam rollers are configured to engage the pair of hooks and to lift and translate the plurality of fixed rollers into complete engagement with the pair of profiled ramps.

公开(公告)号：US12220861B2

公开(公告)日：2025-02-11

申请号：US18390827

申请日：2023-12-20

Applicant: 3D Systems, Inc.

Inventor： Khalil Moussa

IPC: B33Y70/00 ,  B29C64/129 ,  C08F2/48 ,  C08F220/36 ,  C08F222/10 ,  C08F224/00 ,  C09D11/101 ,  C09D11/107 ,  B33Y10/00 ,  B33Y80/00

Abstract: Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart one or more structural enhancements to articles printed from the build materials. In one aspect, a polymerizable liquid comprises at least one additive including a plurality of cyclopolymerizable functionalities separated by an aliphatic linker or alkylene oxide linker.

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：US20240368418A1

公开(公告)日：2024-11-07

申请号：US18654201

申请日：2024-05-03

Applicant: 3D Systems, Inc.

Inventor： Khalil MOUSSA

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

Abstract: 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：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：US12018165B2

公开(公告)日：2024-06-25

申请号：US18326535

申请日：2023-05-31

Applicant: 3D Systems, Inc.

Inventor： Khalil Moussa

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

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

Abstract: 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

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：US20240091412A1

公开(公告)日：2024-03-21

申请号：US17949484

申请日：2022-09-21

Applicant: 3D SYSTEMS, INC.

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

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

CPC classification number: A61L27/52 ,  A61L27/18 ,  A61L27/26 ,  B33Y80/00 ,  C08L71/02 ,  A61L2400/16

Abstract: 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.