Uninstalled mach , deleted folder and all contents. Reloaded the latest version of mach, plugged in smooth stepper , installed its driver , loaded the plugin for ss and the screenset.
Launched mach and all appeared fine , cycled thru first part and aprox 2 minutes into second part and once again lost comm with SS . Now instead of mach freezing up I get the message that comm is lost . Spindle motor continues to turn , but at 80 rpm , instead of the 1600 it was running when freeze, coolant still on. Unplug USB and spindle and coolant shut down.
When I reboot computer and run mach I cant get spindle motor to turn anything above 80 rpms , Comm with SS is then lost within 3-5 minutes , same result with either board.
Hopefully Greg will respond to my emails soon