Many thanks, sorry for being a pain, I didn't realise you were not a Mach3 user.
I did have the Boxford Schematics but somehow lost them in the course of time.
Can you remind me of a link where I can get them.

Good news is I now have the spindle true speed and requested speed allllllmost the same and
Using a macro M6start I am now able to run my toolchanger, it needs tweeking and the addition of a homing sensor on the turret would be a big help.

Thanks

George