Patent ID: 11938679
Assignee: 3D SYSTEMS, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A method of operating a three-dimensional (3D) printing system that is configured to manufacturing a 3D article comprising:
providing:
a vessel configured to contain photocurable resin;
a fabrication subsystem configured to form the 3D article with layer-by-layer selective curing of the photocurable resin, the fabrication subsystem includes;
a build plate;
a build plate support structure; and
a vertical movement mechanism; and

a waste collection subsystem attached to the build plate support structure and configured to capture partially polymerized resin as the build plate support structure moves in an upward direction;

operating the vertical movement mechanism to translate the build plate support structure to a lower position; and
operating the vertical movement mechanism to raise the waste collection subsystem up through the resin and to a position at which partially polymerized resin can be unloaded from the waste collection subsystem.