Just a quick update on this as I have gone over everything again & also tried the converter that Jay had bought & uses.
Had all sorts of different messages depending if it was via the serial to 485 connection or the usb connection.
it will run run on the plugin on this thread but stops at some stage. On the original mach3 plug in that is available via the mach forum it starts the spindle, cuts the job, returns to zero but does not stop the spindle.
Actually got some work to do that I get paid for just now so this is going to have to wait. Just as well I haven't been asked for any work that I would need to use the router for lol.