Patent ID: 11938678
Assignee: LUXCREO (BEIJING) INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A 3D printer comprising:
a liquid storage tank configured to hold a polymerization liquid; and
an anti-sticking element arranged on a bottom of the liquid storage tank, the anti-sticking element comprising:
a top surface in contact with the polymerization liquid, and
a plurality of microstructure depressions that extend from openings on the top surface away from the polymerization liquid, wherein at least some of the plurality of microstructure depressions contain air and have a first opening arranged on the top surface, but has no second openings arranged on a bottom surface of the anti-sticking element;

wherein the anti-sticking element prevents the three-dimensional part from sticking to the bottom of the liquid storage tank.