Ultimate Filament Respooler

I looked around for respoolers but couldn't find anything that seemed as convenient as I wanted it to be. This basically adapts a universal spool holder by closing the inside of the shaft and adding a hole that perfectly houses a long hex screw bit.

Attach the empty spool with the spool holder, slide the long hex bit into the hole, and use the electric screwdriver to respool ... very easy and convenient!