Precision Adjustment Z-axis Endstop for 20mm Extrusion

When configuring my printer, I realized I would need to be able to adjust the Z-endstop more precisely than I had previously assumed.

On my printer, the endstop is attache to X-axis's gantry. In order to precisely adjust when the endstop triggered, I designed this.

This was made for a certain type of nut (part # 92461A200 on McMaster).

I've attached the Sketchup file, in case you want to make any adjustments.