3D Printed Check Valve

youmagine

I've been tinkering with 3D printable check valves for a while now, and I think I've come up with a design that works pretty well. This check valve uses a silicone disc and ball, which are inserted mid-print to minimize the risk of air escaping in other areas. Once printing is complete, the silicone part is set into a sprung position, allowing it to be pushed by airflow in one direction but not the other.