Patent ID: 11938675
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;
an anti-sticking element arranged on a bottom of the liquid storage tank and in contact with the polymerization liquid, the anti-sticking element being a polymer thin film used as a covering part for the liquid storage tank, wherein
a three-dimensional part is formed by polymerization of the polymerization liquid in a vicinity of the bottom of the liquid storage tank,
the three-dimensional part directly contacts with the anti-sticking element,
the anti-sticking element prevents the three-dimensional part from sticking to the bottom of the liquid storage tank,
an outer surface of the anti-sticking element includes a plurality of microscopic three-dimensional modules, which are in contact with the polymerization liquid,
a width of at least one of the plurality of microscopic three-dimensional modules is in a range from 0.01 μm to 10 μm,
a ratio of a length of at least one of the plurality of microscopic three-dimensional modules to a width of the at least one of the plurality of microscopic three-dimensional modules is approximately 1/1 to 1000/1,
a ratio of a length of at least one of the plurality of microscopic three-dimensional modules to a distance between the at least one of the plurality of microscopic three-dimensional modules and a neighboring microscopic three-dimensional module is approximately 1/1 to 1000/1,
the plurality of microscopic three-dimensional modules reduce an effective contact area between the three-dimensional part and the anti-sticking element, and
a light source configured to irradiate the polymerization liquid in the vicinity of the bottom of the liquid storage tank to form the three-dimensional part.