Simple Filament Respooler For Drill (Legacy)

UPDATE: Initially this was just a quick and dirty model of mine, but since it seems to be quite popular I made a better version, based on all of your feedback. You can find it here.

I recently needed to respool a spool of filament because the original spool wasn't compatible with the Bambu Lab AMS. All already existing models needed some additional hardware, which I just didn't want to bother getting. Thus I created my own design. It only needs the two printed parts and a regular hexagonal pencil. Simply clamp the new spool between the who parts and stick a pencil through the hole. The pencil which I used is about 7mm thick (between flats). This seems to be quite a common size, at least here in Europe. Than just mount the pencil in an electric drill and put the old spool onto a filament holder. Then just spin up the drill and start spooling. While respooling make sure to guide the filament with a small piece of PTFE tube. The windings don't look perfect but it certainly works if you just occasionally need to respool a roll of filament.

This is what the finished spools look like: