Wanhao i3 Auto Bed level System

Wanhao i3 Printer Modification.
- Uses two push button switches mounted

This is a work in progress and not fully tested.
Due to the switch type and the existing firmware.
A new firmware needs to be loaded into the printer that supports bed leveling and the z axis switch needs to change to normally closed.

I used two switches from an arduino kit.
I think it is similar to this one.
https://www.adafruit.com/products/367

Tested with new firmware and it WORKS!!!
I used the firmware fro