Small Spool Filament Storage Rack

I needed a quick small rack for my 250g filament spools, to fit on the side of a desk.There are two versions included in the print profile, one for 12mm and one for ½" Aluminium tubing, depending on what is easier to get in your country. The rack can be as long as you want, just print more brackets if you think it might start sagging. The brackets and the end caps are both printed in PLA, it seems to be strong enough for the filament I've placed on it. Hopefully it's useful for you.