I had an armoir filled with 30 unused blankets. Now that I'm into 3D printing… blankets aren't needed… but filament storage is!!

I designed very strong/beefy support brackets. Mount them to the sides… and simply use easily available ½" electrical conduit (Home Depot, Lowes, etc.) and cut to length. Very rigid. Very strong. I also designed filament ID hangers to slip over the filament.