[oldskimmer]

I built cnc router, with Mach 3 controller. Have everything working well with no problems. I leave it unattended at warehouse shop. Would like to get a signal from the system at the end of G code and cutter return to start position and shut down all 110 volt power to router, vacuum etc.

[Al_The_Man]

One way I would think is to assign an M code to an output controlled relay that cuts the coil power to the power device relays.
You would need an M code to reset it at the beginning of a program.
Possibly M3/M5 if not used at present.
Al.

[ger21]

Use M3/M5 for the spindle, and another for the vacuum. You can use the coolant codes (M7/M8, M9), or create you're own to turn on and off relays.

[oldskimmer]

Thanks. I will persue the M code method.

[TOTALLYRC]

On my router I use mo3/5 for the spindle and use m07/8/9 for the vacuum and other accesroies.
I use a g28 at the end of the code to put the machine back in the home position in case I need to change tools or check there condition.

[oldskimmer]

Thanks for everyone's help. I build a heck of a machine, but sure do need help to configure mach3. Installed relays for router & vacuum from breakout board but need help to configure it all. Would like to use M3 to turn spindle on, M5,7,8 or 9 to to turn vacuum on and another to turn both off. Should be easy enough to add to program codes at beginning & end, but I'm lost to configure which outputs to what on what configure screen. Breakout board, stepper controls and 3 relay board are all Probotix. Pardon my electronic ignorance but any help is appreciated.

Bob the machinist

[ger21]

M5 turns off M3 and M4. M9 turns off M7 and M8.

So, turn on the spindle with M3, and off with M5.
Turn on vac with M7 or M8 and turn it off with M9.

In Ports and Pins, Outputs, assign one output for router and one for vac (Use outputs 1-6). Then, go to Spindle tab, and assign the router output to the spindle (M3) and the vac output to Mist or Flood (M7 or M8).

[oldskimmer]

Many thanks Gerry. Just the info I need.

Bob