公开(公告)号：US11597016B2

公开(公告)日：2023-03-07

申请号：US17402811

申请日：2021-08-16

Applicant: 3D Systems, Inc.

Inventor： Ahren Michael Hoy ,  Turner Ashby Cathey ,  Alexander J Geyling

IPC: B22F10/68 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B22F10/28

Abstract: An additive manufacturing system for producing a three-dimensional article includes a print engine, a post-fabrication powder removal apparatus, a transport mechanism, and a controller. The post fabrication removal apparatus includes a rotary frame defining an internal receptacle cavity, a plurality of clamps coupled to a corresponding plurality of actuators, a clamping plate coupled to a lift apparatus, and an agitation device mounted to the clamping plate. The controller is configured to perform the following steps: (1) Operate the transport mechanism to transport the build box to the internal receptacle cavity. (2) Operate the plurality of actuators to engage the build box with the plurality of clamps to secure the build box to the rotary frame. (3) Operate the rotary frame to rotate the build box until unfused powder begins to exit the build box. (4) Operate the agitation device to facilitate pouring of the unfused powder from the build box.

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：US11584085B2

公开(公告)日：2023-02-21

申请号：US17019600

申请日：2020-09-14

Applicant: 3D Systems, Inc.

Inventor： Ben Wynne ,  Robert Mueller

IPC: B29C64/386 ,  B29C64/135 ,  B29C64/277 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y50/00 ,  B29K105/00

Abstract: A three dimensional printing system includes a light engine having a spatial light modulator for curing individual layers of a photocure resin to form a three dimensional article of manufacture. The light engine is configured to: (1) receive a slice image that defines an array of energy values for curing a layer, (2) process the slice image to define an image frame compatible with the spatial light modulator, (3) receive an on signal, (4) activate the first light source in response to the on signal; (5) repeatedly send the first defined image frame to the first spatial light modulator during a defined cure time for the single layer of resin; (6) receive an off signal; (7) deactivate the first light source in response to the off signal; and (8) repeat steps (1)-(7) until the three dimensional article of manufacture is formed.

公开(公告)号：US20220410478A1

公开(公告)日：2022-12-29

申请号：US17848452

申请日：2022-06-24

Applicant: 3D Systems, Inc.

Inventor： Andrew Enslow ,  Frederick T. Mattern

IPC: B29C64/314 ,  B29C64/255 ,  B29C64/124 ,  B29C64/227

Abstract: A three-dimensional (3D) printing system is configured to manufacture a three-dimensional 3D article in a layer-by-layer manner. The 3D printing system includes a resin vessel, a tank agitation subsystem, a fabrication subsystem, and a controller. The resin vessel is configured to contain photocurable resin and has a lower region within a distance H of a bottom surface of the resin vessel. The agitation subsystem includes (a) a grating disposed within the lower region of the resin vessel and (b) an agitation movement mechanism coupled to the grating. The fabrication subsystem is configured to form the 3D article by a layer-by-layer selective curing of the photocurable resin. The controller is configured to operate the agitation movement mechanism to oscillate the grating along a lateral Y-axis to remix filler particulates within the photocurable resin.

公开(公告)号：US11534980B2

公开(公告)日：2022-12-27

申请号：US17099842

申请日：2020-11-17

Applicant: 3D Systems, Inc.

Inventor： Colin Leonard Blain

IPC: B29C64/393 ,  B29C64/129 ,  B29C64/255 ,  B29C64/245 ,  B33Y10/00 ,  B33Y50/02

Abstract: A method for manufacturing a three-dimensional (3D) article includes: (1) receiving a solid model defining a 3D article, (2) receiving information defining an information bearing image which can includes machine and/or human readable indicia, (3) defining a solid model of a 3D tag to be attached to the article, the 3D tag having thick sections and thin sections that define the information bearing image, (4) merging the solid model of the 3D article with the solid model of the 3D tag to provide a composite solid model defining the 3D article integral with the 3D tag, (5) sending the composite solid model to an additive manufacturing system, and (6) operating the additive manufacturing print engine to integrally fabricate the 3D article and 3D tag from a single material.

公开(公告)号：US20220371265A1

公开(公告)日：2022-11-24

申请号：US17737355

申请日：2022-05-05

Applicant: 3D Systems, Inc.

Inventor： Khalil MOUSSA

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

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：US11484944B2

公开(公告)日：2022-11-01

申请号：US16774124

申请日：2020-01-28

Applicant: 3D Systems, Inc.

Inventor： Robert W. Beauchamp ,  Jonathan Watson

IPC: B22F10/20 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/30

Abstract: A three-dimensional printing system for manufacturing three-dimensional articles includes an apparatus, a filtration system, and a controller. The apparatus is a fabrication system that generates ignitable powder dust in an inert atmosphere fluid stream. The filtration system receives the fluid stream and has a plurality of filter units in a parallel arrangement including at least a first filter unit and a second filter unit. The controller is configured to control the filtration unit and to thereby individually operate the plurality of filter units in two states including a filtration state and an oxidation state. When one of the plurality of filter units is operating in the filtration state another of the plurality of filter units is operating in the oxidation state.

公开(公告)号：US20220339858A1

公开(公告)日：2022-10-27

申请号：US17729061

申请日：2022-04-26

Applicant: 3D SYSTEMS, INC.

Inventor： Hossein HEIDARI ,  Matthew Kenneth GELBER ,  Bagrat GRIGORYAN ,  Jordan MILLER

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

Abstract: Provided herein is a system for producing a product. The system generally comprises a large-area micro-stereolithography system and a layer leveling system. The large-area micro-stereolithography system is capable of generating the product by optically polymerizing successive layers of a curable resin at a print plane. The layer leveling system is capable of flattening a non-flat region (such as a meniscus) of the curable resin in a vicinity of the build plane.

公开(公告)号：US20220301268A1

公开(公告)日：2022-09-22

申请号：US17696386

申请日：2022-03-16

Applicant: 3D SYSTEMS INC.

Inventor： Roy Porat ,  Ran Bronstein

IPC: G06T19/00 ,  G06T7/10 ,  G02B27/01 ,  A61B34/20 ,  A61B34/10 ,  A61B34/00

Abstract: Systems and methods are provided for improving registration of AR (augmented reality) units at a surgery scene. Systems comprise augmented reality (AR) unit(s) comprising and/or in communication with head mounted display(s) (HMDs) used by a user, and physical device(s) made of sterilizable biocompatible material and configured as a registration template. The AR unit and/or segmentation software associated therewith may be configured to align a device representation of the physical device onto an imaging model of a patient, and the AR unit and/or the HMD may be configured to register, on the HMD, the device representation with the aligned imaging model onto the physical device, which is positioned with respect to the patient and is viewed through the HMD—to display the imaging model or parts thereof in a corresponding spatial relation to the patient. Registration using the physical device simplifies the coordination among real and virtual devices.

公开(公告)号：US20220289984A1

公开(公告)日：2022-09-15

申请号：US17690763

申请日：2022-03-09

Applicant: 3D Systems, Inc.

Inventor： Khalil MOUSSA

IPC: C09D4/00 ,  C08F220/58 ,  C08F222/10 ,  C08F220/22 ,  C08K5/521 ,  C09D133/24 ,  C09D135/02 ,  C09D133/16 ,  C09D7/63 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/124

Abstract: Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the liquids. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 5 wt. %, based on total weight of the polymerizable liquid, and a brominated acrylate ester component. Additionally, methods of printing three-dimensional articles using said polymerizable liquids are described herein.