Parametric Rim Roller Band for COREBOXX
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Rim roller bands designed for use with the COREBOXX premium kit.
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- Printables
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- Prusa Parts & Upgrades
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- Creative Commons — Attribution — Noncommercial
I found the rim roller bands included in the Bluerolls kit for the COREBOXX Premium model to be... lacking. They were undersized width-wise & had wavy edges, like they had been hand cut from a bike tire tube. Since I couldn't find any other bands online that would match the wheel surface's dimensions, I decided to make my own.
The original model was designed in OpenSCAD, then exported as an STL. The as-programmed dimensions are a perfect fit width wise & hole cutouts for set screw access align pretty well. You may need to trim a bit from the v-cut ends for a perfect fit however (my cut work was B-grade; good enough to work but not perfect), or adjust the OpenSCAD model for a better fit.
I printed my bands using Siraya Tech Flex TPU Air with an 0.6mm CHT nozzle, 0.25mm layer height. That resulted in about a 70A shore hardness, which should work well as a filament reel grip surface. I stuck the TPU strips on to some 3M 467MP contact adhesive, then that onto to the rim rollers.