Extended ProxSensor mount for Migbot i3

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4136249.

This is the belt clamp and sensor mount for the migbot i3 it, relocates the sqaure prox sensor towards the x endstop to clear the frame when the extruder is doing bed leveling at the max travel for x.

It also helps to make the stock zprob more accurate by allowing you to get it squared to the bed

This worked amazingly well.

Pictures to come.