Prusa Research i3 Inductive/capacitive probe bracket

For Auto Bed Levelling I have tried a microswitch on a servo, a inductive probe and a capacitive probe. These are the brackets that mount on the extruder fan of a Prusa Research i3 printer. These probes come in 12 and 18mm diameters so there is a bracket for each.

I finally settled on using a capacitive probe part no.LJC18A3-H-Z/BX NPN NC (if you get an NO one you will need to invert the pins on the Z endstop.

The inductive probe part no is: LJ12A3-4-Z/BX NPN NC.