PRUSA MMU2 Wall mount spool holder V2

Second version of my wall mount spool holder with five individual threaded shafts and tapered nuts that can accept most commons spools for easy replacement, designed for the MMU2 upgrade.
I made printed main supports and redesinged the filament guide to limit rotation to 50° in each direction, I moved also the filament guide shaft under the main supports to feed the filament from the rear of the spool to eliminate a loop and reduce friction in the PTFE tubes