Patent ID: 11911937
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A method of post manufacture processing of 3D printed parts, comprising:
treating an exterior shell of the part to fill all pores and fracture in order to make the exterior shell of the part air and water tight;
forming at least one treatment aperture through the exterior shell to provide access to an internal lattice of multiple layers of extruded thermo-plastic filaments within a hollow cavity of the part;
connecting fluids lines to the at least one treatment aperture of the part;
inserting a stabilizing substance, that flows before it is set and then hardens when set, through the at least one treatment aperture through the fluid lines into the hollow cavity of the part; and
creating a pressure differential within the hollow cavity of the part and using the pressure differential to coat the lattice with the stabilizing substance to fill spaces between the multiple layers and between individual filaments of said extruded thermo-plastic filaments, such that, when set, the stabilizing substance fixes the multiple layers of extruded thermo-plastic filaments of the lattice in position.