US 11,833,756 B2
Multi-stage wash system for vat polymerization-based 3D printed parts
Amir Mansouri, Los Angeles, CA (US); Huijian Tian, Los Angeles, CA (US); Shukun Ye, Los Angeles, CA (US); Hossein Bassir, Los Angeles, CA (US); Aayush Patel, Los Angeles, CA (US); and Hang Ye, Los Angeles, CA (US)
Assigned to SprintRay Inc., Los Angeles, CA (US)
Filed by SprintRay Inc., Los Angeles, CA (US)
Filed on Feb. 23, 2022, as Appl. No. 17/678,996.
Application 17/678,996 is a continuation of application No. 17/142,942, filed on Jan. 6, 2021, granted, now 11,279,089.
Claims priority of provisional application 62/957,645, filed on Jan. 6, 2020.
Prior Publication US 2022/0176632 A1, Jun. 9, 2022
Int. Cl. B29C 64/35 (2017.01); B29C 64/245 (2017.01); B29C 64/386 (2017.01); B08B 3/10 (2006.01); B08B 3/04 (2006.01); B08B 3/02 (2006.01); B33Y 30/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/00 (2015.01)
CPC B29C 64/35 (2017.08) [B08B 3/02 (2013.01); B08B 3/04 (2013.01); B08B 3/104 (2013.01); B29C 64/245 (2017.08); B29C 64/386 (2017.08); B08B 2220/04 (2013.01); B33Y 30/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/00 (2014.12)] 21 Claims
OG exemplary drawing
 
1. A method, performed by a multi-stage wash system for washing off residual resin from objects that are 3D-printed through a vat polymerization process, comprising:
exposing a 3D-printed object to a first solution of a plurality of solvent solutions inside an enclosure of a wash reservoir of the multi-stage wash system;
subsequently to exposing the 3D-printed object to the first solution, exposing the 3D-printed object to a second solution of the plurality of solvent solutions within the enclosure of the wash reservoir of the multi-stage wash system; and
drying the 3D-printed object by exposing the 3D-printed object to an airflow within the enclosure of the wash reservoir of the multi-stage wash system, the airflow facilitated by an array of slots and corresponding blocks on an anti-splash adapter of the wash reservoir.