This is an endstop mount for the larger micro switches. This mounts directly between the pillars and will fit 23.5mm OD conduit. Keep in mind this is for larger 15A switches.
1x 15A Microswitch
4x 20mm or longer M3 bolts
2x M3 lock washers
4x M3 nuts
I've included the SKP file if someone wishes to modify it for a larger or smaller diameter.
Note: The pictures show the endstop switch in my previous version which sat a little too low for comfort. The new design I uploaded increases the sitting height of the switch by about 3mm.