Little Engine (rotating)

Miniature engine. It doesn't need anything but printed parts, assembled as is. Engine is rotating sample.Filament needed ~46gr. AssemblyPut pistonpin in piston hole a bitTake piston rod and in piston, then press piston pin trough piston.Piston rods goes around Crankshaft, piston with rod on shaft, then little pistonrod piece is snapped on placePut crankshaft and piston set to block and last put crankbearings in place. Those goes only oneway to their places. This is first version, i might update