Solder Holder Station (multiple spools)

I needed a solder holder for multiple spools. 

I have 0.3mm, 0.6mm and 1mm spools. I wanted something that worked for all 3 in one go and with the least resistance (so using standard 6x 608 bearings). For flexibility sake, I added two guide holes on the other side as well, so you can choose if you want all to come out on one side or two sides.