I’m driving the SparkFun 125 oz-in motors with Gecko G201 drivers (10 microstep) and I am not getting the speed I was hoping. I am getting a max speed of about 15000 steps/s, which I believe is in the range of maximum steps that I have seen discussed elsewhere. Is there a way to get higher speeds with this configuration? Could I change the step mode for the driver somehow to get more distance out of the steps?
Sorry for the lame post. I have discovered that there is a jumper inside the Gecko driver that can be used to correct the speed for the microstep. I will report my results when I have a chance to work on it!
Update:
I ended up using a G901 Stepper Multiplier to get the speed I need. Worked great.