Bear Upgrade (Reverse Bowden) with FESTO /Tappex Microbarb M5 Fitting

Modified the Bear Upgrade 2.1 optional reverse bowden to fit the original M5 fitting (PC4-M5) used by Prusa for the MMU2 cover.

The vslot mount is available in two versions: angled or normal.

I bought the fittings here:
http://lecktor.com/en/nuts/159-tappex-microbarb-m5-pack-of-10.html

Print instructions

Use the same guide found on https://github.com/gregsaun/bear_extruder_and_x_axis/tree/master/optional_parts/reverse_bowden