prusa x carriage with auto leveling probe

this x carriage has a magnetic probe mount modified from nopheads magnet probe
http://www.thingiverse.com/thing:7550
for almost automatic bed levelling that doesn't require a servo
so those of use with sanguinololu boards can have auto bed levelling with out the need to buy a ramps and a servo

auto bed levelling requires a atmega 1284 and a lcd control makes things better (likely not doable with out it )

this is still a work in progress as I haven't mounted the current version to my printer yet to test

edit mounted and tested tonight works quite nice
hope you guys can make good use of it

edit: added clamps for the belt sorry I forgot them

Edit: after a year of use the original is still mounted and working very nicely
I would say likely the single best upgrade to my prusa has literally turned this machine into a reliable machine
-insert sd card
-pick file
-lower probe
-push the button
-wait for print to complete

instead of the
-level it
-level it again
-hope its ok
-start print
-stop print
-level it
-start again