公开(公告)号：US20220168810A1

公开(公告)日：2022-06-02

申请号：US17402783

申请日：2021-08-16

Applicant: 3D Systems, Inc.

Inventor： Jonathan Watson ,  Kirt Winter

IPC: B22F10/28 ,  B22F10/85 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B22F1/05

Abstract: A three-dimensional (3D) printing system for manufacturing a three-dimensional (3D) article includes a support powder dispenser containing support powder, a metal powder dispenser containing metal powder, a build plate, a beam system, and a controller. The controller is configured to (1) receive information defining a two-dimensional (2D) slice of the 3D article, (2) position the build plate to receive a new layer of metal powder, (3) operate the metal powder dispenser to dispense the new layer of metal powder, the new layer of metal powder spanning the 2D slice and extending beyond the boundaries to define a zone of unfused powder, (4) operate the beam system to selectively fuse the new layer of powder over an area corresponding to the 2D slice, (5) operate the support powder dispenser to dispense a bounding contour of support powder proximate to or overlapping the zone of unfused powder.

公开(公告)号：US20200346412A1

公开(公告)日：2020-11-05

申请号：US16842818

申请日：2020-04-08

Applicant: 3D Systems, Inc.

Inventor： Kirt Winter

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/129 ,  B29C64/245 ,  B29C64/264

Abstract: A three-dimensional printing system is for fabricating or manufacturing a three-dimensional article. The three-dimensional printing system includes a substrate, a light engine, a radiation sensor, and a controller. The substrate has a surface positioned proximate to a build field. The surface supports a calibration target which includes or defines elongate light modulating bars disposed at two different orientations and including a Y-bar aligned with a Y-axis and an X-bar aligned with an X-axis. The light engine includes a plurality of projection modules including at least a first projection module and a second projection module. The first projection module configured to project an array of pixels onto a first image field. The second projection module configured to project an array of pixels onto a second image field.

公开(公告)号：US20190184630A1

公开(公告)日：2019-06-20

申请号：US16278454

申请日：2019-02-18

Applicant: 3D Systems, Inc.

Inventor： Peter Scott Turner ,  Kirt Winter ,  Winthrop Childers

IPC: B29C64/124 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/393

CPC classification number: B29C64/124 ,  B29C64/20 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three dimensional printer includes a vessel, a light engine, a fixture, a movement mechanism, a sensor, and a controller. The vessel is for containing a liquid photocurable resin and includes a transparent sheet defining a lower surface through which the resin can be illuminated. The light engine is disposed and configured to selectively illuminate the resin through the transparent sheet. The fixture is for supporting a three dimensional article of manufacture having a lower face immersed in the resin in facing relation with the transparent sheet. The movement mechanism is configured for controllably translating the fixture to adjust a vertical height of the lower face above the transparent sheet. The sensor is configured to monitor a transient displacement of the transparent sheet during the translation.