Z-Probe bracket for NopHead Mendel90 (Sturdy)

This is a remix of @DanielBull's nice Z probe, hand-modified to fit the "sturdy" variant of Mendel90. It additionally allows for an extra block for adjusting the distance to the X endstop - in my machine, the bolts for the extruder mount go a little further out and would hit the Z axis if left at standard distance.

See the original for installation instructions. There is a gap allowing extra securing of the piece, requiring drilling a small hole into the carriage, then applying an appropriate