公开(公告)号：US20180281277A1

公开(公告)日：2018-10-04

申请号：US15926148

申请日：2018-03-20

申请人： 3D Systems, Inc.

发明人： Christopher Tanner ,  Andrew ENSLOW ,  Ben WYNNE ,  Robert MUELLER ,  James PINGEL ,  Martin Alan JOHNSON

IPC分类号： B29C64/129 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/35 ,  B29C64/20

摘要： A three dimensional printing system includes a resin vessel, a light engine, a movement mechanism, a fixture, and a controller. The resin vessel is for containing a photocurable resin and has a lower portion with a transparent sheet. The light engine is configured to selectively project radiation up through the transparent sheet and over a build plane. The fixture is coupled to the movement mechanism and has a lower face that faces the transparent sheet. The controller is configured to operate the light engine to solidify a particle trapping sheet proximate to the build plane thereby trapping particles that extend upwardly from the transparent sheet into the build plane.

公开(公告)号：US20180222125A1

公开(公告)日：2018-08-09

申请号：US15425289

申请日：2017-02-06

申请人： 3D Systems, Inc.

发明人： Ben Wynne ,  Robert MUELLER

IPC分类号： B29C67/00 ,  B33Y30/00 ,  B33Y50/02

摘要： 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.