Dip Switch settings on the M542 stepper motor drivers

[Tom J]

Dean
I use only good quality digital drivers like Leadshine EM503 and CSMIO/IP-M controller.
I agree some driver can't cope with accuracy and repeatability.
For example this heap DM542
cost 23% price of Leadshine EM503
with exactly same parameters.

I personally tested both drivers under same travel speed for torque value.
Motor 8 leads connected parallel (low inductance and higher torque @ higher speed)

Results:
Cheap driver was stalling with much less speed and can't hold same torque - hence the price difference.

My observation regards torque drops vs micro stepping were not according to what I knew from data.

I disregards motors tested on bench - only connected to the machine via 5M HTD belt and spindle not running.
There are few YT clip showing same experiment. I found 16MS 3200 will not drop torque to ~10% of nominal

I think driver send more current to winding when micro-steps are used hence motor can lift much more than 10% of theoretical value.
Will try to make video when get proper torque gauge display or mini scale