Universal Spool Holder

Ball bearing supported stand-alone universal spool holder.

NB: Print in mm for correct size.

I wanted a spool holder, I couldn't find one that met my needs (I didn't look too hard), I made one that does. Hence, one extremely smooth, rugged and easy to use universal spool holder. Initially I thought it might be too smooth (i.e. just keep rolling even when the printer isn't pulling material), but I've been using it since January 2015 and it’s been working perfectly.

It supports virt