Coffee piston stamper

Coffee piston stamper 88mmFor 88mm pistonsIts in 2 parts so 2 different colors can be used For other sizes scale as following:size% = 100 / 88 * {target diameter}So for say a 70mm piston: 100/88*70 = 79.5% Prints without supportPETG is a good materialPrint with thick walls and bottom so it does not bendI used 1.6mm solid bottom and 4 walls