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Third party software and hardware support forums. / Re: HELP WITH OPTIMUM CNC CONTROLLER VI AND MACH3
« on: May 12, 2020, 05:55:58 AM »
You can set an enable in Mach to turn the relay on a lot of boards use pin 14 or it could be it needs a chargepump signal.
Some pictures of the board may help us.
Some pictures of the board may help us.