Hi Ron
You asked me to send some photographs and links for ways in which people can use their CNC machines for cutting dovetails and box joints.
The problem with cutting these joints on a CNC machine is the need for the round bits to cut a square shoulder in the timber, and for that to happen the timber needs to be machined from the end rather than from the top.
Three ways to achieve this are:
1) to cut a hole in the table surface so that board can stick up through the table,
2) make the table able to cut over the end of the bed
3) make a shoe that is able to hold the router at right angles to the table surface
A fourth way is to only make very small boxes that will fit under the transom of the table.

I didn't want to cut a hole in table top, so I made a shoe that held the router at right angles to the table.
Shortly after doing this I had an epiphany realising that I could get a fair amount of router overhanging the end of the table by utilising the back of the transom to mount the Z axis. So all I need to do is unscrew the Z axis from the front of the transom and attach it to the rear of the transom.
You tube movie of half blind dovetails
http://www.youtube.com/watch?v=ZGEYO1g6ZcUSome problems that others have experienced
http://www.practicalmachinist.com/vb/cnc-machining/heck-time-dovetail-machining-200399/False dovetails
http://www.woodweb.com/knowledge_base/Dovetail_DrawerBox_Joinery.html