Colorfabb 2.2kg Spool Roller

You will need:
4 x 608 roller bearings, washers optional-(1)
24 x M8 nuts and washers-(2)
2 x threaded rods, M8 x 13in/330mm
4 x threaded rods, M8 x 8in/200mm

So, how about those Colorfabb 2.2kg spools, eh? Kinda massive, huh? Not too easy to fit onto the side of your printer, ya dig? Almost comically large, y'feel me?
Anyway, this is a rolling cradle for Colorfabb's Hugh Mungus-approved filament spools. We were going to use some 80/20 steel for a frame, but space was an issue and we h