XATC / extremly simple automatic CNC Toolchanger

XATC
====

For my XDisPlace project i try to find a good solution to bring all (Mill, Cut, Drill, Solder dispense, Solder) processes together.
I wrote a ToDo what i need to bring this project to fly. I realized, all what i need it's just to find a solution for an Automatic Tool Changer (ATC).
Here i try to describe all steps how you can build your own XATC.

EXAMPLE
========

https://youtu.be/-IGAYd8OnOE


Project Links
------------
* Weekly messages on [g+](https://plus.google.com/collection/QX47gB)
* Video sessions on [youtube](https://www.youtube.com/playlist?list=PLYPTUTcLMTK7m0cOoOKlDnuhGV8ONrgo_)
* Web Video log on [blogspot](http://xpixer.blogspot.com/)

Dependencies
------------

* [TinyG as CNC Controller](https://github.com/synthetos/TinyG)
The first stable version is realized on a tinyGv8.
* [Chilipeppr](http://chilipeppr.com/tinyg)
This will be needed at runtime to perform the actual tool change.
* [Arduino](https://www.arduino.cc/)
Only re