Air Engine

This air engine is inspired by Tom Stanton's Compressed Air Engine (https://www.thingiverse.com/thing:2936786) and Greg Zumwalt's Model Aircraft Styled Air Engine (https://www.myminifactory.com/object/3d-print-model-aircraft-styled-air-engine-experimental-51266). It is made to be more printable on my printer, so the block is split up into two parts. The prop is just being used for a flywheel but I will make a real one later.