US 12,472,683 B2
Composite material reinforced stereolithography methods and systems
Jackson Hamilton, Somerville, MA (US); Cole Durbin, Cambridge, MA (US); and Maxim Lobovsky, Cambridge, MA (US)
Assigned to Formlabs Inc., Somerville, MA (US)
Filed by Formlabs Inc., Somerville, MA (US)
Filed on Feb. 2, 2023, as Appl. No. 18/163,487.
Claims priority of provisional application 63/267,511, filed on Feb. 3, 2022.
Prior Publication US 2023/0241835 A1, Aug. 3, 2023
Int. Cl. B29C 64/124 (2017.01); B29C 64/20 (2017.01); B29C 64/307 (2017.01); B29C 64/336 (2017.01); B29C 70/30 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01)
CPC B29C 64/124 (2017.08) [B29C 64/20 (2017.08); B29C 64/307 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A method for producing a three-dimensional object on an additive fabrication device, comprising:
cutting a first composite material patch into a shape corresponding to a respective cross-sectional area of the three-dimensional object;
after the cutting step, placing the first composite material patch on a bottom of a vessel of the additive fabrication device;
moving a build plate of the additive fabrication device whereby at least one of the build plate or a layer of at least partially cured resin on the build plate touches the first composite material patch; and
irradiating resin contained inside the vessel with an energy source to at least partially cure a layer of resin integrated with the first composite material patch.