This is a redesign of MKingCharles "Bed Leveling Knob "Tire" for Anycubic i3 Mega" with knurling on the outside.

I found adding a brim helps because the bed adhesion around the holes has such a small area that it was warping.

also check out my other wheels https://www.thingiverse.com/thing:4075377

If you download any of my designs please consider clicking that "like" button.

This is a remix of MKingCharles
Bed Leveling Knob "Tire" for Anycubic i3 Mega
by MKingCharles Oct 9, 2018
https://www.thingiverse.com/thing:3145976