Automatic Platform Leveling and Z Calibration made SUPER EASY

Well nearly automatic; it doesn't get much easier than this. This is for a Thing-O-Matic, but there's no reason you can't apply the same principle to any bot. This is simply a Z-Min endstop that works and is simple to build.

Many thanks owed to DammitCoetzee, who thought up some even more clever directions to take this that I've not yet implemented. And many many thanks to Worksofman for the awesome aluminum plate.

YOU HAVE TO SEE THIS VIDEO TO BELIEVE!
http://www.youtube.com/watch?v=U