Sundae Spool Holder (twin bearing)

## Sundae Spool Holder (v2)

This is a spool holder designed to work around a 20x20 aluminum profile beam commonly found on all kinds of 3D printers and ensuring extremely smooth rotation of the filament spool via 2 x 608 bearings per side.

It uses a set of two parts and two bearings for each side and a another printed part to keep the spool in place, that still allows easy access to it.

## History
- **v1** (Jan 2019): the initial version used two end caps (now part B) but wasn't small