Creality X-Axis GT2 Idler Pulley (CR-10, Ender 3 bearing sleeve)
thingiverse
I got tired of using a smaller GT2 idler pulley that I had replaced my stock Creality idler bearings with for smoother prints. I had used a smaller bolt and it had started bending in towards the printer and so wasn't as tight as it used to be. This was designed to use the stock Creality idler bearings, but with a sleeve that makes them a 30-tooth GT2 idler pulley. I went through a few iterations to get the dimensions, tolerances, and functionality right, but I'm really happy with the final result. Although designed from scratch, this was inspired by https://www.thingiverse.com/thing:3431905.
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