Filament spool anti tangle
thingiverse
Trying to avoid tangles and constrictions on spools. Fast, simple and low cost, avoiding to print spool rewinders. You need three M3x30 screws or M3x35 screws plus nuts. This fits perfectly in the original prusa i3 mk3 spool holder (axis diam: 24mm), and you can use with different spool sizes (max. OD diam: 226 mm). I recommend to fold up the hinge to force the filament to go to center. If you need to modify it, please feel free to pm!
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