All you need to add to this spool holder are 4 bearings, 4 rubber feet and your filament is ready to roll.
This spool holder is suitable for spools that carry 500g (1lbs) of filament and have a width of 4cm.
Print support for the bearing holders has already been added to the design. You can simply break these off when finished.
Find more info on the new Vertex Nano 3D printer here: http://vertex3dprinter.eu