Hi Dave ,
I have just taken one off a Contour minor, working on converting it to run off a motion control card, because when I got the mill it did not come with a license for the software
I don't think that the card is fully functioning, there may be a problem with the firmware and the guys that installed it did not use diodes on the relay for the spindle so I that the output is faulty
on the plus side all the chips are socket mounted

Diarmuid