This is a pneumatic air motor.
The images show how the parts should be assembled.
A video showing the function and explanations of the design is available on youtube:
https://www.youtube.com/watch?v=Oq1qBqM7FPI
| Bottom.stl | 57.3KB | |
| Engine_Block.stl | 319.7KB | |
| Fixation.stl | 158.3KB | |
| Flywheel.stl | 127.7KB | |
| Flywheel_spacer.stl | 98.5KB | |
| Middle_ring.stl | 56.3KB | |
| Outer_spacer.stl | 70.4KB | |
| Outer_spacer_2.stl | 70.4KB | |
| Piston.stl | 1.1KB | |
| Stand_1.stl | 185.4KB | |
| Stand_2.stl | 185.4KB | |
| Valve_body.stl | 2.7MB | |
| Valve_cam.stl | 42.9KB | |
| Valve_force_screw.stl | 2.9MB | |
| Valve_opener.stl | 1.1KB | |
| Valve_stem.stl | 84.5KB | |
| Work_cam.stl | 42.9KB |
