Simple spoolholder with one M3 mounting screw
thingiverse
I'm thrilled you liked the design idea! I made some tweaks to make it easier to assemble with a single M3 screw. I also reduced material usage by remixing the shaft. Adding a piece of PVC tubing is a great suggestion to minimize friction, just like in the picture. **UPDATE June 5, 2017:** The original Holder and Shaft STL files were designed for spools up to 70mm wide, but they fit best at around 65-67mm. I've uploaded new files - Holder_80mm and Shaft_80mm - that are optimized for spools up to 80mm wide, fitting best at 75-77mm.
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