Phone Stand Combustion Engine

This phone stand is modeled after a single cylinder combustion engine.
The piston also has a recess for cell phones up to a width of 82mm and a thickness of 12mm (e.g. iPhone 8 with case).
The piston can be moved oscillating by the rotation of the crankshaft via the handwheel on the back. The handwheel is modeled after a Porsche rim.

In addition to the printed parts, other components are needed, which are listed in detail below. Also there is a assembly instruction below.

All parts can be printed without support.

You will need to print the following parts:
1x piston.stl
1x connecting_rod_top.stl
1x connecting_rod_bottom.stl
2x crankshaft.stl
1x crankcase.stl
2x bearing_cap_large.stl
1x bearing_cap_small.stl
1x gear_large.stl
1x gear_small.stl
1x knob.stl
1x shaft_cap.stl