What a star you are - I'll get some half round bits and give it a try
I have a Dremel (rechargeable) and have seen someone mounted something similar on the side of the head, thought this was a good idea, they can
run at a pretty high speed - if I can design some clamps/brackets
Converting a mill to CNC opens up lots of interesting possibilities - I have also considered changing the motor pulley to increase the speed (from 22 tooth to 45)
but need to source the parts (I am in the UK)
Thanks for the help
Chris