Prusa i3x Inductive Sensor (12mm)

Mount for the 12mm LJ12A3-4-Z/AX inductive sensor on the Prusa i3x. Uses the original mounting holes in the front, with a small mount for a cable tie on the side for the wires.

Sensor: http://www.banggood.com/DC-6V36V-Inductive-Proximity-Sensor-Detection-Switch-p-925067.html

Here's a guide for the Marlin firmware:
http://www.instructables.com/id/Enable-Auto-Leveling-for-your-3D-Printer-Marlin-Fi/?ALLSTEPS

I used these settings:
const bool Z_MIN_ENDSTOP_INVERTING = false;
#define