A Print in one go spool and mounting axle with a central roller bearing sized to fit the coils of Proto-Pasta filament. The spool unfolds to hold a coil of filament 50x30 mm with an internal diameter around 160 mm. Just unfold the two parts and push the mount into the hub. Printed in ~3 hours on a Replicator 2 using Makerware "Low" setting i.e. 0.3 mm layer height, 10 % fill, 2 shells, 90 mm/s travel.