Filament bearing/rail system

I really liked the filament holders that used bearings for the spool itself to roll on but always thought they were inefficient since they always involved large prints and only held a single spool. I set out to fix this using what I had laying around. This system uses a series of spacers and clips to hold multiple spools on 2x8mm smooth rods (the cheap kind from the hardware store not the nice kind used for printer axis) Credit to LittleDangerous for the C clip