Spoolholder for CTC Bizer (and other Replicator clones)

After gathering some ideas around here, I designed my own spoolholder where the spool rests on 608ZZ bearings. Easy to load and very smooth in supplying filament to the extruder.
Design is for spools with total width of around 70 mm. If needed I can add bars for other size spools or even an adjustable version. When you want something, just leave a comment.

Update (Feb.12/'17):
Since there are different size spools I created some parts that make the whole design adjustable in width. With the