[AR1911]

AR1911~

Missed the "H" in the first part number. Apologies.
KL23H2100-35-4B vs. KL23H2100-30-4B
That will let you check the pdf file for each drive to compare specs.

Aha! Thanks

The link I provided is an article that has a sub paragraph titled "Performance Factors."
It does a nice job describing the "electrical time constant" of a stepper motor. Which
is why those values are included in the motor's spec.

~john

I bookmarked that to read this week, certainly looked useful.
After reading through the G320X setup procedure, tuning those servos looks pretty fussy.