Adjustable Z probe for Bed Auto Leveling (Prusa i3)

Here a simply update for add Auto Bed-Leveling system to your i3 Prusa Rework style printer (like mine Poang 3D).

The Probe is Adjustable and you can mount the stand part directly on the bracket of the extruder.

You need also a Hall magnetic sensor like this one:
http://www.dx.com/p/new-hall-sensor-module-for-arduino-black-152092#.V0yNLjWLSWg

I've used in addiction 2x mini-magnets 5x5x5 mm and some 3 mm screws and bolts.
Full information here: http://www.instructables.com/id/Adjusta