foldarap filament drive idler
by charlyoleg, published
This part can replace the rubber roller of the foldarap. My rubber roller doesn't wheel smoothly. So I prefer replace it with this printed part to reduce the friction between the filament and its drive idler.
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If you want to change values of the openscad parameters, check the SVG file. It contains a clear description of these parameters. I printed half day with it without issues. Let's see how it lasts!