Rostock Max v2 Filament Holder

Parts to replace melamine arm with proper spool holder.

Requires M8 threaded rod, nuts, and 608 skate bearings.

Getting the rod holes level was pretty challenging. Would appreciate feedback from someone who has tried this as I haven't printed it again since making some tweaks.

Note, for ABS, scale to 102% before slicing - so everything will fit properly!

Also, the Rostock Max v2 is built in english units, not metric - whee!