Prusa i3 Aluminum frame - Filament Spool mount

I wanted to relocate my spool to the top of my printer so I designed this. It's designed to hold one (or several) filament spools on top of the prusa frame mounted onto 8mm threaded rod. I designed it specifically to feed directly into the extruder (also mounted to the top of the frame). I also left the top of the threaded mount open so you can lift the whole spool off without having to dismantle the mount.

For the internal spool reel that adapts the reel to 8mm threaded rod please see my des