prusa MK3 dual spool holder with rolling mount (no bearings required)

This is a basic version of a MK3 spool holder with two arms for two spools. 

Each arm is printed with threads to screw into either side of the holder. 

Each arm also has a sleeve that goes over the arm to allow the spool to rotate as filament is being pulled. NO BEARINGS needed!

the holder attaches to the top of the frame like the OEM one does, but this one fits a bit tighter. so you will need too use a little more force to mount it. But once its on, its stays put.

sturdiness depends on filament used to print it and infill density. 

This was printed with PLA at 90% infill. 

Assembly is easy. Take the sleeve and the arm, slide the sleeve over the arm so that there is a “wall” on both sides, then screw the arm into the mount. done!