Have an issue you can't figure out on your own?
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anyone ever have an issue with their z motors turning at slightly different rates? my flsun i3 has dual z motors running off of one driver using one of those splitter boards and i can not get both motors to turn at the same rate. after doing one print the entire x axis is no longer level because of this. it appears to only be about 0.3 or 0.4 for every 100mm of height but its enough to throw everything off and require both a bed re-level and attempting to level out the x axis after almost every print.
I understand they are digital, and I don't believe it's a tension issue as they are both coupled to lead screws. I do use lithium grease on the lead screws to help with friction. Both sides of the x axis are supported by wheels with no way of adjusting the tension, but do move freely.
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