FABtotum filament spool

Filament spool that fits inside the FABtotum fabricator.

__v003__: Be aware that this model is the exact thickness of the available space inside the FABtotum (with the side panel closed). It works fine on my printer, but might create more than friction than necessary.

__v004__: Is 2mm thinner than v003 and has a center hub with a 8mm hole to make the process of adding the filament easier.