On the pictures below you can examine the actual design I've come up with. Click on the images to enlarge.

Here are some photos of the actual DIY CNC machine.

Here is some video of the machine milling aluminum front panel:

 And here are some photos of the front panel. Click on the images to enlarge.

Here are some videos of the machine milling steel panel. Pictures of the finished unit are on the CNC Controller Enclosure project page.

On the pictures below you can see an aluminum engraving of the 19" front panel. Click on the images to enlarge.

And here is the video of engraving that particular panel