CoreXY GT2 Belt Tensioner - skate bearings
thingiverse
These are modified arms and nuts which support the use of standard skate bearings (608ZZ) as I had loads of these lying around from free fidget spinners I've collected over the years. Use the other parts from the original with these to be able to use the different bearing size. The idler pulleys friction fit over the bearings. I used 100% infill on these but honestly, they're small enough that that's how they'll end up anyway. Thanks to Lopezmodd as I was able to use their design for this unchanged. Tolerances are a little loose on the nuts but I opted for ease of printing over a tight fit. Please let me know if it ends up being too loose.
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