I remixed "Prusa i3 MK3 X-axis-cable holder R4 extruder for mk2,5 - add block for X endstop
Remixed from:
https://www.prusaprinters.org/prints/1995-prusa-i3-mk3-x-axis-cable-holder-r4-extruder
Print from PET, 20+% infil
The author hasn't provided the model origin yet.