US 11,926,096 B2
Techniques for build platform part release in additive fabrication and related systems and methods
Craig Broady, Somerville, MA (US); Gurshan Deol, Burlington (CA); and Gagandeep Singh, Mississauga (CA)
Assigned to Formlabs, Inc., Somerville, MA (US)
Filed by Formlabs, Inc., Somerville, MA (US)
Filed on Jan. 25, 2021, as Appl. No. 17/156,925.
Application 17/156,925 is a continuation of application No. 16/927,150, filed on Jul. 13, 2020, granted, now 10,899,077.
Application 16/927,150 is a continuation of application No. 15/835,163, filed on Dec. 7, 2017, granted, now 10,710,303.
Prior Publication US 2021/0229353 A1, Jul. 29, 2021
Int. Cl. B29C 64/245 (2017.01); B29C 64/135 (2017.01); B33Y 30/00 (2015.01); B33Y 40/20 (2020.01); B29C 64/124 (2017.01); B29C 64/153 (2017.01)
CPC B29C 64/245 (2017.08) [B29C 64/135 (2017.08); B33Y 30/00 (2014.12); B33Y 40/20 (2020.01); B29C 64/124 (2017.08); B29C 64/153 (2017.08)] 17 Claims
OG exemplary drawing
 
1. An additive fabrication device configured to form layers of material on a build surface, the additive fabrication device comprising:
a build platform comprising:
a rigid structure;
a flexible layer attached to the rigid structure, wherein a surface of the flexible layer forms the build surface on which the additive fabrication device is configured to form layers of material; and
one or more handles configured to be actuated to apply a force to the surface of the flexible layer, thereby deforming at least part of the surface of the flexible layer away from the rigid structure.