US 12,134,230 B2
3D printing system and method
Cheng Sun, Wilmette, IL (US); Rihan Hai, Evanston, IL (US); Nanzhu Zhao, Novi, MI (US); and Sandeep Patil, Farmington Hills, MI (US)
Assigned to Nissan North America, Inc., Franklin, TN (US); and Northwestern University, Evanston, IL (US)
Filed by Nissan North America, Inc., Franklin, TN (US)
Filed on Aug. 31, 2021, as Appl. No. 17/463,479.
Prior Publication US 2023/0067468 A1, Mar. 2, 2023
Int. Cl. B33Y 10/00 (2015.01); B29C 64/124 (2017.01); B29C 64/277 (2017.01); B29C 64/30 (2017.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01)
CPC B29C 64/277 (2017.08) [B29C 64/124 (2017.08); B29C 64/30 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A 3D printing system:
a vat containing a liquid photopolymer resin;
a rigid base on which an object is configured to be printed;
a control arm connected to the rigid base and configured to move the rigid base relative to the vat;
a first light source configured to emit a first light to the vat to form the object on the rigid base while the rigid base is connected to the control arm; and
a second light source configured to emit a second light to the object on the rigid base to cure the object, the second light source being configured to emit the second light to the object while the object is connected to the rigid base and while the rigid base is connected to the control arm, the second light source being configured to emit the second light to the object when the object is disposed externally of the liquid photopolymer resin in the vat, the second light source being directly connected to a wall of the vat and the second light source being movable along the wall of the vat.