air blast Gcode

I run Gmoccapy on my mill and I've just got the touch plate probe all setup. I noticed I tend to get chips sitting on top of the touchplate which I'm sure would interfere with the measurement. I figured the mist coolant would just blow them off. Now I realize the mist coolant tends to form droplets on the touchplate which would also likely ruin the measurement.

I thinking of adding an air blast solenoid, but looking at the LinuxCNC docs there is no specific air blast M code. I see it's usually and M17 on some controllers. Looking at the docs, it looks like M62/M63 will be able to handle this, but I'm not 100% sure I understand how it works from the docs.

I'm guessing that also applies to an M6? It looks like I'd need to link "motion.digital-out-00" to the Mesa card output in HAL. In the program I'm guessing I would run "M62 P00" before the M6 and "M63 P00" after. I'm wondering if this is correct or there is another way to do this.

I use the m101 m102 to open/close my air actuated collet closer on the lathe. Maybe this will help:

lathe collet closer m code