Large Spool holder for CR-10 v2/v3

I needed a spool holder capable of holding a 2KG spool and designed this as an initial solution.

There is a version of the roller that uses 608 bearings, but that may cause the spool to spin too freely and unravel, so there is also a version of the roller that does not use bearings.  I used m3x4 screws on either end of the rod to keep the 608 bearings in place.  A sleeve is provided for the roller to make it thicker if that is desired.

Printed on MK3S+ with PLA, 0.6mm nozzle, using 3 perimeters for extra strength, and default 15% infill.  The rod was printed with supports.