Lattice base structures for additive manufacturing
AssigneeCarbon, Inc.
InventorFlorian Markus Barth
Life of this patent
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Abstract
A method of making at least one three-dimensional object by additive manufacturing, including: (a) producing, on a carrier platform, by bottom-up stereolithography from a single batch of polymerizable resin, a composite article comprising and produced in the sequence of: (i) an open lattice layer on the carrier platform; then (ii) a frangible layer on the lattice layer; and then (iii) at least one three-dimensional object on the frangible layer; then (b) cleaning the composite article with a wash liquid while on the carrier platform; (c) optionally separating the composite article from the carrier platform; and (d) optionally further curing the composite article; and then (e) separating the at least one three-dimensional object from the lattice layer by cutting or breaking the frangible layer.
Claims11
A method of making at least one three-dimensional object by additive manufacturing, comprising:
- (a) producing, on a flat planar surface of a carrier platform, by bottom-up stereolithography from a single batch of polymerizable resin, a composite article comprising and produced in the sequence of:
- (i) an open lattice layer on the carrier platform;
- then
- (ii) a frangible layer on said open lattice layer;
- and then
- (iii) the at least one three-dimensional object on said frangible layer;
- then
- (b) cleaning said composite article with a wash liquid while on said carrier platform;
- (c) optionally separating said composite article from said carrier platform;
- and
- (d) optionally further curing said composite article;
- and then
- (e) separating said at least one three-dimensional object from said open lattice layer by cutting or breaking said frangible layer,
- wherein said frangible layer comprises a plurality of interconnected posts, beams, struts, or combination thereof,
- wherein said open lattice layer and said frangible layer have an open space, said frangible layer has a substantially flat top surface portion, said at least one three-dimensional object has a substantially flat bottom surface portion connected to said substantially flat top surface portion, said at least one three-dimensional object has an internal cavity surrounded by said substantially flat bottom surface portion, and said internal cavity is in fluid communication with said open space, and
- wherein said posts are interconnected by struts of said open lattice layer.
Dependencies are inferred from the claim text.