Piston

Simple Automotive Piston with valve reliefs and ring grooves.
Ready for anyone to change to add their needs.

I made the first version to fit my shifter threads on my '41 Chevy rat rod truck and one for my old school '50 Ford.

I print everything at 0.14 or 0.18 resolution, 30% or more for infill, 5 bottom/top/and wall layers.

Ironing / Arc Welder are active in everything I print, but up to you.