Two-Slot Unlockable Loose Filament Spool
thingiverse
Modification of the [Unlockable loose Filament Spool](https://www.thingiverse.com/thing:1986210) design which now holds two filaments, allowing for the simultaneous storage of two small samples or leftovers in the same compact space as the original model. I'm adding a belated thought: to prevent interference between the secured ends of each filament, it's advisable to wind them in opposite directions. I haven't yet had sufficient experience with this design to confirm whether this issue will arise in practice. Also available on GitHub: https://github.com/kpreid/3dp-filament-spool-dual
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