After what seems a very long time, I now have to get to work writing more software.
I fixed an RC aeroplane brushless motor to the CNC, and Dremelled the shaft into a cutting bit.
I feel a bit naughty doing it, but now I can get started on the final stage of the development. All steam ahead to better software and firmware.
Okay, firmware done, now to tackle the path command stuff. I really want to build a simple UI for the setup stage. So it's easier to move the cutting head around, and get it ready to run its pattern... luckily I've been doing a bit of Tkinter work that should do the trick.