Acrylic Top Mount Filament Spool Holder for CR-10 Enclosures

There must be hundreds of spool holders on Thingiverse. I tried a half-dozen of them before giving up and designing something myself. Some only worked for a single spool width or spool size. Others broke after about a week. Still others were complicated to make and required bearings that had to be perfectly adjusted to work.

So I set out to design a spool holder with the following characteristics:

1. Must work with 99% of spool sizes and widths.

2. Must be reliable for 24/7 use.