Patent ID: 11858213
Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. A method of fabricating a build part using a vibration-assisted stereolithography system, comprising:
separating a build surface of the build part a first distance from a constrained surface to form a gap having a gap thickness;
populating the gap thickness with a resin;
at a first time, directing an electromagnetic energy from a light source through the constrained surface to cure the resin residing in the gap;
at a second time after the first time, vibrating, by an audio speaker receiving a vibratory input signal, outputting a vibratory response signal, and connected to the constrained surface, the constrained surface along a same direction as the first distance to separate, post-cure, the build surface from the constrained surface;
applying a separating load to a build platform while vibrating the constrained surface; and
filtering, by a bias element comprising a coil spring connected to the constrained surface, the vibratory response signal,
wherein the vibratory input signal includes a sine wave.