Filament roll stand
thingiverse
As you see in the photos this is a pretty sturdy filament roll stand. It can store 7 rolls per section and can be pilled up quite a few levels. You only need a kind of bar of 21-22 mm of thickness. In my case I used a broomstick. Very cheap and very convenient.Hope it helps you.
Download Model from thingiverse
With this file you will be able to print Filament roll stand with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament roll stand.