Some folks just can’t leave well enough alone, and that often ends up being a good thing. Such is the case with this 3D-printed compressed air engine, which just keeps getting better. The des… ...

Continue reading “3D Printer Air Compressor Is A Wankel” → Posted in 3d Printer hacks Tagged 3d printing , compressed air engine , rotary engine , Wankel , wankel rotary engine ...

Powered by compressed air rather than jet fuel, the turbofan jet runs at the same idle speed as the real engine. "We put a strobe light up to it, and the core was spinning 1500 to 2000 rpm ...