Upgrade version 2.0
- Easy assembly of the crankshaft.
- Integrated stand.
- Turning wheels in stead of cranked handle.


Printing
The crankcase is printed with support.
Print the pistons and piston pins with brim.
I printed with PLA+, layer height 0.16 mm.
Use a filament with strong layer adhesion (metallic or silk not recommended). 
Dimensions 70 x 68 x 47 mm.
Weight 0.050 kg.


Assembly
- Build the crankshaft with the connecting rods, applying glue.  Keep the crank cheeks aligned.

- Lay the crankcase upside down on the table. 
- Click the assembled crankshaft in the crankcase, the connecting rods pointing downwards.
- Mount the 8 pistons to the 8 connecting rods using the 8 piston pins.
- Click the pistons in the cylinders.

Operation
Turn the crankshaft with one of the turning wheels.