US 11,745,423 B2
Method and apparatus for additive manufacturing
David Riha, Knoxville, TN (US); Alexis Fiechter, Mesa, AZ (US); Robert Bedsole, Knoxville, TN (US); Charles Hill, Topton, NC (US); Timofei Novikov, Friendsville, TN (US); and Kyle Rowe, Knoxville, TN (US)
Assigned to RapidFlight Holdings, LLC, Manassas, VA (US)
Filed by RapidFlight Holdings, LLC, Manassas, VA (US)
Filed on Apr. 23, 2019, as Appl. No. 16/392,468.
Claims priority of provisional application 62/661,553, filed on Apr. 23, 2018.
Claims priority of provisional application 62/661,903, filed on Apr. 24, 2018.
Prior Publication US 2019/0322047 A1, Oct. 24, 2019
Int. Cl. B29C 64/245 (2017.01); B29C 64/379 (2017.01); B33Y 30/00 (2015.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29K 69/00 (2006.01); B29K 55/02 (2006.01)
CPC B29C 64/245 (2017.08) [B29C 64/379 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); B29K 2055/02 (2013.01); B29K 2069/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for additive manufacturing, comprising:
positioning a build sheet on a print substrate of a printer, the print substrate including a barrier layer, the barrier layer including a spacer platform that defines a platform surface having a cross-sectional shape of a well, the build sheet conforming to the platform surface, wherein the print substrate further includes a template layer disposed between the spacer platform and the build sheet, the template layer defining one or more template voids passing through the template layer in a stacking direction of the printer;
printing an object on the build sheet; and
detaching the object from the build sheet after completion of said printing, wherein the build sheet includes a build surface layer configured to at least partially adhere to the object during said printing, wherein the build surface layer is configured to be removable from the object after printing.