Setting up new router.
1605 screw on Z
1610screw on X
2505 screw on Y

When setting steps per inch in motor tuning for 2505 screw to 10160 it moves 2xMDI input.
Axis Calibration will change steps per inch to 5080 ( as per a 2510 screw )

My 1605 screw on Z calibrates ok abt 10160 steps per inch

I swaped out motors and cables same results.

Gateway Tower
P4 - 512 ram
KL23H2100-35-4B stepper motor
G540 (ver 5)
Mach3 Ver R3.043.066

G540 set up is good.
If I leave Y axis set as 5080 the machine will run ok.
But I want the 2505 screw setting.

Thanks
Bob