This is my first attempt to PCB engraving. It was quite easy although you need to redraw the whole PCB on CAD before. I used Inkscape to trace a PCB which was in GIF format by simply drawing circles and lines which was later exported as DXF. After following this tutorial http://www.cambam.co.uk/forum/index.php?topic=1770.0 I managed to get very successful results as you can see in the picture below.
This is my neat solution to mount the Gertboard on top of the Raspi. The Gertboard mounting replaces the top of the Raspi box. All cut on my DIY CNC machine. If you are interested in obtaining the box with the Gertboard mounting, please contact me directly.
This is my third build of a CNC router. The first cut was a case for the Raspberry Pi.