On 13/01/16 18:52, andy pugh wrote: > running at 28V One of the problems with the early 'cheap' controllers was the 24V supply. Simply replacing the driver with one capable of 45 or so volts made the stepper motor and hardware actually work reliably and I would suspect you are subject to the same problem with not being able to get full power out of the stepper motor. At least 10 times the rated stepper motor voltage should be a minimum, but the lower voltage motors seem to work better with a 20x supply.
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