prusa mk3 cooler holder

the prusa mk3 extruder stepper gets very hot, so i decided to create a easy holder to use a 40mm x 40mm x 11mm passive cooler. it should be easy to clip on and you can secure it with zip ties around the stepper. i would recommand to use petg for that print.

the updated version is a remix from the remix of my original part with holes for a 40mm fan.