Thingiverse
Hand Crank for Complete Engine with Rotating Assembly by admica
by Thingiverse
Last crawled date: 4 years, 5 months ago
This is a thumb wheel (thumb hexagon?) for the crankshaft to allow easy rotating of the engine assembly by hand. It should be super easy to print.
Crankshaft that fits this hand crank is found here:http://www.thingiverse.com/thing:102180
Crankshaft that fits this hand crank is found here:http://www.thingiverse.com/thing:102180