I've just got my machine, and was giving Mach3 and everything a test, and I'm stuck in mm and need to get to inches...I may just be overlooking something, but can't figure out how to switch...?

At the top of the screen, config then select native units. You will need to recheck all your motor setting I think.

At the top of the screen, config then select native units. You will need to recheck all your motor setting I think.

What will it do to the motor settings?

I mean may, I only know that it is set once and not ment to be changed after. The g20/g21 comands will switch the machine between mm and inches once you get it set up.

You could try entering this for a test

G20(inch mode)
G90(absolut positioning)
F5(feed rate)
X 1(moves x to 1)

thats: g1 X 1(moves x to 1 at current feed rate)