this can manifest it's self in many ways .
such as low voltage , not enough current , incorrect setup between what you have the stepper driver set for and the actual step pulses
i.e setting the software for for say 1/8 step and having the actual hardware set for 16 microsteps .
ideally for steppers you want the highest voltage for the stepper driver spec and around 3A for each stepper your using
most stepper drivers can accept upwards of 24v , and with the advent of modern stepper drivers they take care of the current rating
put very simply voltage gives you speed , amps gives you holding torque for the position .
however there is a trade off the higher the microstepping the lower the torque available ,to overcome z axis forces of gravity etc
this will show it's self as slipping downwards , especially if a fast move or high acceleration
if ever your faced with a stepper that seems to slip , modify your step rate and acceleration , by reducing by 50 % and try again
once you have it working correctly then you can bring the speed up in stages
hope this helps people understand steppers a little bit moreStatistics: Posted by cncbasher — Sat Nov 08, 2014 9:16 am
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