Ring Motor with piston 3D print model

The Mechanics ring for all engine lovers a detail and unique Engine working piston ring. The piston is a moving part on the rings top cylinder, it moves by rolling the top gears back and forwards, gears can not move all around as there is not a camshaft on the gears.

Ring sizes inner diameter - 20 mm, Added size 14 USA Recommended material - silver or gold! Approximate metal weight (for ring size 20 mm): gold 14k - 26.6 grams; gold 18k - 31.8 grams; silver 925 Sterling - 21.4 grams.

Model volume (for ring size 20 mm): 2055,661 cubic mm. Model avalible in STL format for prototyping. Geometry is healed, and fixed all the bad with RP Magics software You can check out my other products by clicking on the author name artchahur. Please don't forget to rate the model you purchased. Any questions? Please contact me. Thank you!