Spool Winder Hub with M8 Nut

thingiverse

I swapped out the original Filawinder hubs for M8 nuts that fit perfectly. You can either attach one directly to the filawinder or use two of them on a section of threaded rod to spin a massive spool using a drill. That's exactly what I remixed this design for - to manufacture large quantities of filament on enormous spools, and then re-roll it into smaller rolls with my trusty drill.