Originally Posted by
JoshuaRC10
If FDR remains the same after swapping pinion/spur, I would anticipate the motor position not changing.
FDR is related to total tooth count, and whether you're running 50/100, 100/50, or 75/75, you still have the same number of teeth and the motor position should remain the same. Additionally, there is no performance difference between one pinion/spur combo and another if the FDR remains the same.
I'm pretty you might have that confused. 50/100 is .5:1____100/50 is 2:1____75/75 is 1:1