Prusa Spool Holder and Support for 1kg Spools

Yet another spool holder for the Prusa, but this one has all the benefits/improvements I could think of.

-Bent support design allows filament to line up directly above extruder and not rub on anything

-My spools were damaged in shipping and the two sides were no longer attached. This inner and outer support holds the two halves together and allows for smooth rotation on the rod

-Spiral slots so that the holder can simply be lifted on and off of the machine without needing to take