公开(公告)号：US20180029311A1

公开(公告)日：2018-02-01

申请号：US15220004

申请日：2016-07-26

Applicant: General Electric Company

Inventor： Stephanie Lynn Depalma ,  William Cosmo Murphy ,  Travis Sands

IPC: B29C67/00

CPC classification number: B29C64/35 ,  B29C64/124 ,  B29C64/307 ,  B29C64/321 ,  B29C64/357 ,  B29C64/393 ,  B29L2009/00 ,  B33Y40/00

Abstract: A method is provided for maintaining resin in a system including a main feed tank and at least one vat, each of the at least one vats associated with a 3-D printing machine. The method includes the steps of: transferring resin from the main feed tank to the at least one vat; operating the associated 3-D printing machine in a build cycle; returning the resin from the at least one vat to the main feed tank; and repeating in a cycle the steps of transferring the resin, operating the 3-D printing machine, and returning the resin.