so why does mach3 alter my gcode!

[turbothis]

my code comes up fine on my cam preview and other mach driven mill.
the mill i want to use comes up with its own version of my gcode!!!!!
what makes it do this??

this code is off the same thumb drive
what it is supposed to look like.


and this is the super magic mach3 version it thinks i cant live without!

[Hood]

General Config change the IJ mode.
Hood

[turbothis]

nice, thanks
what does ij stand for?

[RICH]

I is the location of the starting point of the arc and J defines where the arc center is from the starting point. Note that  there is Absolute
distance mode ( G90 ) and also Incremental distance mode ( G91 ).

RICH

[ger21]

Sorry Rich, but that's not correct.

I is the X coordinate of the arc center, and J is the Y coordinate of the arc center. In absolute IJ mode, they specify the actual arc center. In Incremental IJ mode, they are relative to the start of the arc.

[RICH]

Thanks Gerry,
Glad somebody keeps me straight ...........
RICH