Piston Model to size. Based on a wide variety of inspirations as well as schématics. Measurements are based on real piston schématics, and seem to be rather standard. Modeled in Fusion360 and exported to other formats, if the format you are interested in seems to be missing, please reach out and I will see if I have access to a conversion. Blender model was slightly rework to convert as many tris to quads.
Do not 3d print to use in your car as a Piston replacement.
Material used for renders is cast aluminium.