FlashForge Finder Spool Holder

Hello gentlemen, total 3D printing noob here. Working with a FlashForge Finder in a small home office, I need a place to store away several filament spools while not in use. Since the FF Finder spools seem to have a specific design, these holders were custom made in TinkerCAD (also first steps for me).

The only room left is under my desk, so these holders will be screwed to the back panel there, hiding the spools from sight.

This is a custom made design to fit the FlashForge Finder PLA spools (0.6 kg), with two screw holes for mounting to a vertical surface.
I printed the prototype with low detail setting and only 10% infill, which seems to be enough. Change your settings in order to toughen it up :)

Shaft is 19 mm diameter, outer circle 48 mm diameter.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/7gOgFAYcVXj