Here is a short video of a Vision Engraving & Routing Systems 2550 CNC Router Making Multiple Braille ADA Signs.
The cool thing is it puts in the Braille beads automaticly. Cuts the time in half when making Braille signs

Click below to watch Video
[nomedia="http://www.youtube.com/watch?v=SHLEHPRzFXk"]YouTube- 2550_ADA_CNC602.avi[/nomedia]

You can go here for more info on the 2550 CNC Router