Summary

z-rod clasp that you can attach a mechanical endstop on. I wanted to home in the upward direction, and this seemed like a good place to put the limit switch

Instructions

Print without support
I printed mine at 0.25 mm with a 0.35 mm nozzle.

The limit switch mounting holes are sized for an M3 thread, and require tapping.

Replace the upper z-rod clasp on the motor end of the x-axis with this part.

Homing up does not require a setscrew adjustment, but does require you to tell the firmware where the z-limit switch is. On my MendelMax 1.5+, it is at 144.48 mm.

MendelMax Z-rod clasp with endstop mount