Original files created and designed by PeterH1500 (https://www.printables.com/model/137790-100mm-4-truncated-ball-valve-type-non-clog-blast-g) and shared under Creative Commons Attribution 4.0 International (CC BY 4.0). My contributions (BallValveServoBearing.stl) are shared under Creative Commons Attribution 4.0 International (CC BY 4.0).Continue Reading