Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
Tesla Valve
Description
Nikola Tesla's "Valvular Conduit" for your printing pleasure.
Instructions
Print! May need a heated bed. Works marginally well. Expect updates as I tweak the geometry.
License

You may need to scale the STL up a bit for it to print correctly. Mine works a lot better scaled up.