3d Printable Radial Pneumatic Engine

3D Model

You can see it in action here on Youtube, and all the .stl files can be downloaded here on Thingiverse. Can be powered by a balloon, or just by blowing air into it. Used in this little toy car.

Just a few of extra parts needed for the assembly:

• 3x nitrile glove fingers (blue part)
• 15x M3x8 bolts
• 2x M3x12 (or longer) bolts
• 17x M3 nuts