Tangled filament: the bane of 3d printing. Did you know that 10,000 prints are ruined by tangled or twisted filament *every second?* But spool holders are large, unwieldy prints, impossible to run on a smaller printer.
This spool holder can be printed so easily it's hard *not* to make one! All you need are two small prints, a few pieces of wooden dowel, and maybe some zip ties.