Simple filament spool storage shelfs

I watched the excellent video from Mandicreally  and needed to makesomething like it, but I decided to use parts I have sitting around the workshop. In this case it was some parts from racking I had and some 1515 extrusions.

I have other racking that has a slightly different profile so I included the step file so you can adjust to what you have. Cut the 1515 to about 220mm long and you can stack and still pull out filament. It can also stack more than 2 high and go as high as you want.