You could try to read documentation for GRBL https://github.com/grbl/grbl
Anyway, in my opinion Flood pin (A3) or Mist pin (A4) would work just fine.
M7 - Mist coolant ON
M8 - Flood coolant ON
M9 - All coolant OFF
brand new to cnc with silly questions
I just bought my 1st cnc machine: a $200 Chinese 3018 router from ebay. It's actually pretty cool, but the documentation is very limited and I have dumb questions. My first question is how to control an external relay through G Code and GRBL 0.9. I'd like to be able to turn on and off a small vacuum pump, but it is not clear to me how to do this (what pin to connect the relay to and what G Code commands to use). Any guidance would be greatly appreciated.
Thx!
Jerry
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Re: brand new to cnc with silly questions
You could try to read documentation for GRBL https://github.com/grbl/grbl
Anyway, in my opinion Flood pin (A3) or Mist pin (A4) would work just fine.
M7 - Mist coolant ON
M8 - Flood coolant ON
M9 - All coolant OFF
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