Hi.
I originally posted this in FAQ but got no response ( plenty read it but no advice)
Setting up my PWM control spindle I enter the value 1.73 for the pulley ratio & this gives an accurate spindle RPM value ,but when I close Mach3 & restart it the value has changed to 1.7. I've edited the Xlm file SPINRATIO1 to 1.73 using notepad & restarted MACH & the spindle ratio is 1.73, But when I close MACH it does not save this value just 1.7. Running on Rev 3.043.038 ( as Rev 3.043.066 has the problem with the analogue spindle speed control which was fixed in 3.043.36
Ian