Robo 3d Auto Bed Leveling (Auto Bed Height Compensation)

http://vimeo.com/92090749

This thing is an implementation of the Marlin Auto Bed Leveling function on a Robo 3d printer. Of course this Z Probe design could be adapted to other printers.

This function really should be called something like Auto Bed Height Compensation, but regardless the function is a great improvement thanks to the efforts of the Marlin team. No more fiddling with that Z Axis height adjustment and no more having to finely adjust the bed level.

IMO this function in th