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« on: March 08, 2010, 07:11:18 AM »
The current you set the drives to is determined by your motors, they will have a current rating, usually current per phase. Your drives may have dip switches or need a resistor but for your motors it would seem you need to set the drives to 5Amps but that may depend how you have them wired. I am not up on stepper wiring, been a long time but lots of good info on Geckos site, well worth a look.
Microstepping should not really affect the torque, current affects that and volts affects speed. As to what microstepping would be best then according to Gecko they say any more than 10x is kind of wasted for CNC machines, it wont really harm but wont have any benefit, if they are running fine at 16x and you can get the velocity at that resolution just stick with it.
Hood