Cr-10 Locknut Bed Leveling Knobs
thingiverse
Fits a standard M4 locknut. It is designed to be hard to get in there as I didnt want any wobble. If you are having trouble fitting it, I found using a ball peen hammer to tap it into position works wonders. You will have to install a locknut against the heated bed or the bed level knob will just rotate the M4 bolt.Once its on it will not vibrate loose. I went dozens of prints without leveling. I had to adjust the Z endstop height. I used a dremel to length the holes on the original mount. If you dont want that consider printing this. https://www.thingiverse.com/thing:2349068 Remember spin left to rise the bed and spin right to lower the bed.
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