Summary

I was tired of the springs and wing nuts on my print bed so i made a TPU bushing and a large thumb wheel to make leveling easier,

you will need to press in a M5 thin nut into the thumb wheel
you of course can use the thumb wheels with the springs instead of the bushings if you cant print with TPU.

CAUTION: if you print the bushings you will need to insulate it from the heater if you are using a heated print bed.