Mechanical Z Endstop for DjDemonD/AndreasL Dual z axis smartrapcore alu

This is an adjustable z-max endstop holder for a standard endstop 1.2 board. It can be retrofitted (using superglue or acetone if printed in ABS) to the lower front bracket of the dual z axis.

The second part is an extension which can be glued to the unused belt clip on the left side of the front z carriage, to press the endstop.

This has come about as ABL seems to be a bit of a waste of time with this axis on this printer, the bed can be easily manually levelled and is quite consistent.