公开(公告)号：US20230356473A1

公开(公告)日：2023-11-09

申请号：US18351947

申请日：2023-07-13

Applicant: 3D Systems, Inc.

Inventor： Eric M. Innes

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/214 ,  B29C64/124 ,  B29C64/232 ,  B29C64/236

CPC classification number: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/214 ,  B29C64/124 ,  B29C64/232 ,  B29C64/236

Abstract: A three-dimensional (3D) printing system includes a vessel, a coating subsystem, a calibration block, and a controller. The vessel is configured to contain a photocurable resin having a resin upper surface. The coating subsystem includes a coater module including a coater blade, a lateral movement mechanism coupled to the coater module, a sensor mounted to the coater module, and a vertical actuator system. The calibration block has a calibration surface. The controller is configured to operate the lateral movement mechanism to position the coater blade over the calibration block, operate the vertical actuator system to lower the coater blade into engagement with the calibration surface of the calibration block, operate the sensor to measure a distance to the calibration block, and store the distance as indicative of a vertical position of a lower edge of the coater blade.

公开(公告)号：US20230321916A1

公开(公告)日：2023-10-12

申请号：US18122497

申请日：2023-03-16

Applicant: 3D Systems, Inc.

Inventor： Alexander Gabriel Steinberg ,  Rex Thomas Alexandre

IPC: B29C64/393 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B33Y50/02

Abstract: In the context of additive manufacturing processes wherein objects are built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, methods are provided for improving at least one build quality attribute by adjusting a size of one or more voxel spaces for receiving discrete deposits. According to various embodiments, the quality attribute pertains to reducing excess material used in the build process or to thermal behavior of deposited materials. According to various embodiments, the size of a voxel space may be adjusting by scaling and by subdividing into a cluster of smaller spaces that warrant smaller deposits.

公开(公告)号：US20230321915A1

公开(公告)日：2023-10-12

申请号：US18122477

申请日：2023-03-16

Applicant: 3D Systems, Inc

Inventor： Alexander Gabriel Steinberg ,  Rex Thomas Alexandre

IPC: B29C64/393 ,  B33Y50/02 ,  B22F12/90

CPC classification number: B29C64/393 ,  B33Y50/02 ,  B22F12/90

Abstract: In the context of additive manufacturing processes wherein objects are built by layered accumulations of discrete instantaneous deposits of feedstock material at specific locations according to a three-dimensional digital data model, methods and systems are provided for selecting an advantageous alignment between an array of fillable voxel spaces and a model layer slice. In accordance with some embodiments, variable alignment achieves an overall reduction in the amount of excess material formed by discrete depositions of material and extending beyond the contours of the object.

公开(公告)号：US20230303876A1

公开(公告)日：2023-09-28

申请号：US18326535

申请日：2023-05-31

Applicant: 3D Systems, Inc.

Inventor： Khalil MOUSSA

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

CPC classification number: C09D11/38 ,  C09D11/328 ,  C09D11/101 ,  C09D11/107 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  B29C64/112 ,  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：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：US11731347B2

公开(公告)日：2023-08-22

申请号：US17518152

申请日：2021-11-03

Applicant: 3D Systems, Inc.

Inventor： Guthrie Cooper ,  John D. Clay

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y50/02 ,  G01N21/94 ,  B29C64/135 ,  B33Y50/00 ,  B29C64/386 ,  B29C64/268 ,  B29C64/25 ,  B29C64/393 ,  G01N21/958 ,  B29C33/00

CPC classification number: B29C64/135 ,  B29C64/25 ,  B29C64/268 ,  B29C64/386 ,  B29C64/393 ,  B33Y50/00 ,  G01N21/958 ,  B29C2033/0005

Abstract: A three-dimensional printing system for solidifying a photocurable resin in a layer-by-layer manner at a build plane includes a scan module, a transparent plate, a sensor, and a controller. The scan module is configured to scan the light beam along two axes to address the build plane. The transparent plate is positioned in the optical path between the scan module and the build plane. The transparent plate has at least one reflective feature in the optical path. The sensor is mounted above the glass plate and is positioned to receive light reflected from the reflective feature. The controller is configured to operate the scan module to scan the light beam across the build plane, receive a signal from the sensor when the light beam impinges upon the reflective feature, and analyze the signal to verify a proper alignment of the light beam to the build plane.

公开(公告)号：US20230234280A1

公开(公告)日：2023-07-27

申请号：US18158507

申请日：2023-01-24

Applicant: 3D Systems, Inc.

Inventor： Jeffrey Jacob Cernohous ,  William Dean Macy

IPC: B29C64/118 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y70/10 ,  B21D37/10

CPC classification number: B29C64/118 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y70/10 ,  B21D37/10 ,  B29K2101/12

Abstract: Processes and material compositions are disclosed for applying polymer additive manufacturing to producing press dies, such as for sheet metal forming. As disclosed in various embodiments, material compositions comprise a thermoplastic, a first filler having low aspect ratio particles and a second filler having high aspect ratio. In at least one embodiment, composites according to the disclosed teachings have a compressive modulus greater than 3500 MPa and a compressive strength greater than 70 MPa, such that the composites have sufficient mechanical properties for press tooling and are amenable to extrusion-type additive manufacturing processes. In at least one embodiment, the use of the disclosed composites with additive manufacturing enables reduced overall mass of tooling by inclusion of voids inside the die.

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：US11679547B2

公开(公告)日：2023-06-20

申请号：US16742168

申请日：2020-01-14

Applicant: 3D Systems, Inc.

Inventor： Kevin Michael Hsu ,  Patrick Dunne

IPC: B29C64/129 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  B29C64/393 ,  A61C7/08 ,  A61C13/15 ,  B29L31/00

CPC classification number: B29C64/129 ,  A61C7/08 ,  A61C19/003 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  B29L2031/753

Abstract: A three-dimensional printing system includes a resin vessel, a support tray, a motorized carriage, a light engine, and a controller. The resin vessel has a lower side with a transparent sheet which provides a lower bound for photocurable resin contained within the vessel. The support tray has a lower face for supporting an object being fabricated. The motorized carriage is for supporting and vertically positioning the support tray. The light engine is for projecting radiation up through the transparent sheet to a build plane. The controller operates the motorized carriage and the light engine to fabricate the object. The object includes a vertical arrangement of dental arches suspended from the lower face and a plurality couplings that connect pairs of the dental arches.

公开(公告)号：US20230095466A1

公开(公告)日：2023-03-30

申请号：US17933592

申请日：2022-09-20

Applicant: 3D SYSTEMS, INC.

Inventor： Bagrat GRIGORYAN ,  Jordan MILLER ,  Selene ALIKAH ,  Matthew GELBER ,  Faraz JIVAN ,  Andres RUIZ ,  Jacob SNOOK

IPC: B01L3/00

Abstract: Some embodiments of the disclosure disclose manifolds, microfluidic systems and methods that provide control over fluid flow distribution to an array of bio-scaffolds contained within the manifolds. In some embodiments, multiple perfusates may be injected into the manifold via multiple inlets where the manifold contains a bio-assembly with a substrate having a bio-scaffold disposed thereon. Biological investigations of the perfusates may then be conducted in the vascular components and chambers of the bio-scaffold.