Made a very simple inductive probe mount for the Wanhao Di3, Monoprice Maker Select v2, and Cocoon Create. This is for 18mm diameter inductive probe sensors, although it could be adjusted in the openscad source code for smaller probes.
Note that this mod uses the original fan mount position for the sensor, so you cant use this if you are still using the original/stock fan.
Also note that adding an inductive sensor requires modifying your electronics and firmware, so be aware of that before attempting.
This can be mounted on the "top side" or "bottom side" of the metal mount.
October 14th 2018: Uploaded Version 2 which moves the mounting position from the "front side" to the "left side" of the stock fan mount. This is better because it puts the sensor closer to the nozzle. Note that the new version is a tight fit, but was done that way to make it mount as closely as possible to the nozzle. I also increased thickness to 6mm to improve the stiffness of the mount.
Here are my offsets from the nozzle:
#define X_PROBE_OFFSET_FROM_EXTRUDER -23 // X offset: -left +right [of the nozzle]
#define Y_PROBE_OFFSET_FROM_EXTRUDER -37 // Y offset: -front +behind [the nozzle]
I also changed this line to 15mm
#define MIN_PROBE_EDGE 15
October 8th 2018: Uploaded initial version 1 which mounted to the front. (future edit: this version is still included, but I do not recommend using it due to the large y-offset)
ESUN Clear PETG PETG
Print using PETG since it could get hot (in theory).