US 12,011,880 B2
Recoater system for additive manufacturing
Matthew Sweetland, Bedford, MA (US)
Assigned to VulcanForms Inc., Burlington, MA (US)
Filed by VulcanForms Inc., Burlington, MA (US)
Filed on May 27, 2020, as Appl. No. 16/884,534.
Claims priority of provisional application 62/853,423, filed on May 28, 2019.
Prior Publication US 2020/0376773 A1, Dec. 3, 2020
Int. Cl. B29C 64/393 (2017.01); B29C 64/153 (2017.01); B29C 64/214 (2017.01); B29C 64/236 (2017.01); B29C 64/245 (2017.01); B29C 64/25 (2017.01); B29C 64/371 (2017.01); B33Y 10/00 (2015.01)
CPC B29C 64/393 (2017.08) [B29C 64/214 (2017.08); B29C 64/236 (2017.08); B29C 64/245 (2017.08); B29C 64/153 (2017.08); B29C 64/25 (2017.08); B29C 64/371 (2017.08); B33Y 10/00 (2014.12)] 23 Claims
OG exemplary drawing
 
9. A method of locating an obstacle on a build surface, the method comprising:
translating a recoater blade in a first orientation across the build surface in a first pass;
making a first contact between the obstacle and the recoater blade;
detecting a first contact point on the build surface based on the first contact;
translating the recoater blade in a second orientation across the build surface in a second pass;
making a second contact between the obstacle and the recoater blade;
detecting a second contact point on the build surface based on the second contact; and
determining a position of the obstacle on the build surface based on the first contact point and the second contact point.