What are the buttons on the x carve controller for?

[JustinBusby]

Xcontroller help

The three buttons, from left to right: Feed Hold/Pause: this issues a hardware feed hold command (aka pause) to GRBL. By default on the Xcontroller, it will turn off the spindle output, turn off the M7/M8 outputs and raise the spindle to just below the machine zero position. Press the resume button to start again. Resume: resumes the current program. It clears the feed hold condition. It will lower the spindle down to safety height or work zero (can’t remember which), turn on the spindle and t…