Universal Threaded Spindle for Auto-Rewind Spool Holder

thingiverse

I prefer the Parametric Auto-Rewind spool holder over the Universal Auto-Rewind Spool Holder because of its flexibility with a threaded spindle and nuts for variable size spools. I designed a universal adapter that fits over the rewind spindle, eliminating custom adapters for different inner diameters. This adapter works with spools ranging from 45mm to 65mm in diameter. I updated it with a larger nut for larger spools exceeding 60mm in diameter. The threaded spindle requires a parametric spindle with a 30mm diameter. I've included STL files for the right size spindle and all other required parts. There should be slight slippage between the parametric spindle and the threaded spindle to allow the threaded spindle to turn freely. If it's too tight, avoid tightening the nuts down tightly on the threaded spindle and allow slippage instead. No slippage at all can cause the spool to stop turning or your filament/coil to break, or even drag your spool by the extruder.