Due to a broken axis of the original knob for the switch of te sensor module I made a replacement. I used Polymaker Polymax because  of good Layer adhesion. The wall of the cylinder is thin you need very good layer-adhesion because of the printing direction. For Bottom and top I chose concentric. 0.2 mm printing height and 0.4 nozzle. 

I did some minor cleaning with sandpaper ans a 4 mm drill bit . The knob is just pushed in lightly. 

Happy printing