Easy print roller with additional groove
thingiverse
This is a remix of https://www.thingiverse.com/thing:3020026 With an idea taken from https://www.thingiverse.com/thing:3961520 for better printability. I hat the problem that my spool moved always to the end of the holder giving an awkward angle for the filament and I always feared that the spool will hop down the holder. Therefore I added a groove. The pin fits quite loose and could be fixed with a little bit of glue. I added the freecad file if maybe someone wants to change it.
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