Thanks for reply. Have experimented a little without problems, except as you suggest, the spindle gets quite warm. Since the process time is not important. I will interrupt the program every 20 mins or so to cool. Additionally I will air cool it with comp. air and some cardboard ducting to both cool and blow swarf.. So still working round it.
Going to finish mount for the Kress today.Will see what the little servo`s think of it.
Hopefully I can get some more use from the machine in future