I liked the redesign of the "Roller Spool Holder" and made one that is a bit narrower to save space and filament, and then a version for the 2kg spools.
Im using 40mm pvc tube with the original design end-caps.
Im not using any screws to keep the bearings in place, they sit just fine without it.
I have been printing mine with 0.3 detail with a 0.6mm nozzle with no supports required.
The author remixed this model.