If you try to connect build 582 to a machine running Grbl 0.9, Carbide Motion will bring up an error message that versions prior to 1.1 are not supported.
CM3 does not make a version check which catches that it is connecting to 1.1, and odd things will eventually happen if it is connected to a version of Grbl other than 0.9
Updating is nice, but our recommendation now is to buy a new controller — we have them on a hidden page in our shop — check in at support@carbide3d.com for the specifics (we’ll also want your serial number so we can look up the calibration).
Will, so the new controller is a drop-in replacement for the one in the Classic? I ask because my Classic Plus (DIY wider belts, replaced spindle shaft, added energy chains) is on its way from storage in California and I’ve been anticipating updating GRBL to 1.1 also. Is the McGillicutty incorporated in the new controller or is it still an auxiliary board (not knowing what the hidden page shows… )
That is a question for the folks at support — they’ll be able to look up records/check w/ someone who has experience w/ the machines/electronics in question.
As amends for the hijack , I will add this. Brandon at Carbide Support (thank you for the call, Brandon!) told me that the early Nomad 883’s with the Arduino Uno and Carbide Motion stepper motor shield: