So I made this primarily because I needed to get rid off the filament I didn't like and I had small problem I needed to solve, so isn't the most efficient use of filament. 

The main feature is that shelf spacing is big enough that you can easily grab any of FIXA boxes without fiddling.

Printing doesn't require any supports, I've included files for shelves with 4, 3, 2 and 1 units. 

If you decide to print this, here are the settings I used to print it Silk PLA.

• 0.4 nozzle
• 0.2 layer height
• 15% infill 
• 3 walls

Printed on Neptune 4 Pro, 4 unit shelf takes