I made this thing to remove the frustration of slipping wraps and stiff-rolling rolls as well as floppy TPU.
Bowden tube holder fits 6mm OD tubing and is a tight fit, spool holder fits super tall and fairly wide rolls with at least a 43 mm hole.
Needs to be printed with stiff filament with at least 3 outside layers. I may make a slightly shorter holder to reduce the wobbly-ness to it. If you desire 2 or more rolls on the holder, simply scale up the Rod or use a broom stick.
This will also fit any cube machine with 2020 tubing, it will have to span the entire machine.
You will need a way to fix the tube to the print head, there are many available designs.
Easy to print with supports only on the extreme overhang, low filament consumption.