All the components are Chinese and I am having trouble finding any model numbers. I'm starting to think that this is a bit beyond my area of expertise. So I have been thinking to replace the whole thing with something like System4C (http://www.diycnc.co.uk/html/cnc_systems.html). This would also give me a parallel port which I don't have at the moment in order to use EMC to it's full potential.

Anyone have any thoughts or recommendations?

I very much appreciate all your help, thank you.

Regards,
Dan