Been on to Peter Homann's site and looks like what I need
Excuse my ignorance but will it work in cnc mode or only manual
I have zero electronic knowlege so put up with me for a while
Im just north of you in Aberdeenshire (Newburgh)
Dave
Good to have another Scot here
Yes this will work as you are machining just like the on screen one does.
You can reduce the number of input pins required by using a rotary switch with binary or BCD coding. That would allow, for instance, a 16-position switch to use only 4 input pins.  You'd then create a brain with 16 "lobes". Each "lobe" of the "brain" would have to look at all four values to determine the switch position.
Regards,
Ray L.
Yes Ray that would work great, never actually thought of that but dont know why as thats the way my servo drives can work if in indexing mode, 63 index positions from 6 inputs.
Hood