I've been experimenting for some time on how to create 3D printable check valves. This check valve utilizes a silicone disc and ball. This silicone piece is inserted mid-print, minimizing the chances of air escaping in other spots. Once fully printed, the silicone part is put in a sprung position, allowing it to be pushed by air in one direction but not the other.<div>Instructables guide: <a rel="nofollow" target="_blank" href="http://www.instructables.com/id/3D-Printed-Check-Valve/">http://www.instructables.com/id/3D-Printed-Check-Valve/</a></div><div>Video: <a rel="nofollow" target="_blank" href="https://youtu.be/PwzdimEBX2A">https://youtu.be/PwzdimEBX2A</a></div>
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