Patent ID: 11945156
Assignee: YOUNG OPTICS INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A three-dimensional printing apparatus, comprising:
a liquid tank, capable of accommodating a photosensitive liquid, the liquid tank comprising:
a film, disposed in the bottom of the liquid tank and having a workpiece curing area;
a plurality of side walls, surrounding the film; and
a plate, disposed under the film and capable of supporting the film, and the plate having at least one fluid tunnel extending from a first surface of the plate contacting the film to a second surface of the plate, wherein the plate is not flexible; and

a motor, connected to the liquid tank to incline the liquid tank;
wherein a gap is formed between the plate and one of the plurality of side walls of the liquid tank, the film is capable of communicating with an outside space via the gap, and, during separation of a cured workpiece from the film, a lowest point of the film is lower than a lowest point of the plate.