[Claytonc]

Well, I'm trying to create a warmup routine that I can run on my CNC router in the mornings. I've created a pattern that the machine will follow several times with increased spindle speed and feed rates on each pass.
The part Im having problems with is I would like it to do a reference all first, run the warmup gcode, then park at the end.
Is it possible to add this into the gcode or would I have to call a script somehow?
I'm using Mach3, 2010 screenset, windows xp, a Geiko 540, and a superPID2.

[fordav11]

you can use G28 to reference it on the first line of your program. but many machines need a manual reference before they will go so that may not work in the program.

[Claytonc]

Thank you.

[ger21]

You'll need a macro to load and execute the code.
But I can simplify a few things.

Add M884 to your initialization string in General Config and the machine will home when you start it and click Reset.

And if you add M883 to the end of your warm up code, it will go to the Park position when finished.
I add M883 to the end of all my g-code.

[Claytonc]

If I can add the M883 at the end why cant I add M884 to the beginning of the Gcode instead of in the config?

If I do add M884 to the config string will it want to home each time I click reset or just for the first time?

[ger21]

If I can add the M883 at the end why cant I add M884 to the beginning of the Gcode instead of in the config?

You can. It's just not the way I'd do it. If you do add it to the code, you may need to add a While IsMoving...Wend to the end of M884, to make sure homing is completed before the code starts.

If I do add M884 to the config string will it want to home each time I click reset or just for the first time?

There's an option for either. You only want it the first time.

[Claytonc]

I see. If it only does it the first time then that would be the way to go because thats the first thing I do anyway.

Can you write While IsMoving into the gcode.txt file and Mach3 will understand it?
I'll have to play with some of this. Not much of a coder as you can tell but it is interesting