Automatically shut off air in Gcode..

[d4cnc]

Thanks so much Jazz.. really appreciate it.. Had a good read/watch & experiment with brains.. very useful stuff..


I was asking if when running a job, I noticed that I didn't need air, I could just do a quick click myself to save a bit air and then click it on again..


What I would love to be able to do, but haven't worked out how yet is the following..


I start a Gcode program..
The M8 line happens.. no air
The cutter lowers to Z-0.001 - AIR ON.
I want to turn off the air for a bit but it's still under Z0 so I click the flood button - AIR OFF
I click flood again - AIR ON
the Gcode program sends an M9, still under Z-0.001 - AIR OFF


ie. is it possible that the brain can listen for an M8 or flood toggle button, and if it's under Z0, it allows the relay to turn on.


And also if it sees an M9 or flood toggle button, it will turn off the relay, no matter what position the cutter is.




I'll do some more experimenting now.. but just wondering if you know if it's even possible what I'm asking..

[d4cnc]

Got it I think..
If I put flood to an unused output.. Then in the brain I can use an AND function between Z position and flood on.
There will only be air when flood is activated (via Gcode or myself) and the Z is less than -0.001.

I'll try it in practice tomorrow..

(not sure if there's a better solution than using an unused output for flood..)