Cutting glass with a CNC

I never thought about using a CNC to cut glass.  Its a cool idea but I would have to include water in with my CNC to help cool and keep the particles down…Not so sure about how much of a pain that could be.  Thought the author is using it for things like telescope blanks, I am thinking more about cutting custom glass pictures.

http://hackaday.com/2014/12/04/cutting-glass-with-cnc