Y axis moving when it shouldn't

Discussion in 'Calibration, Help, and Troubleshooting' started by Jack J, Mar 31, 2016.

  1. Jack J

    Jack J Member

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    seems everything else is working on my printer and it so wants to print but it seems the y axis is in a world of its own , it looks like the axis is moving to far at points but not at others

    any ideas guys?

    20160331_133439.jpg
     
  2. Rob Heinzonly

    Rob Heinzonly Well-Known Member

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    This could be a power issue with the Y-axis driver. Most people are running the stepper at around 0.56V At what voltage are you running now ?
     
  3. Jack J

    Jack J Member

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    its currently set at 578 mv im gonna adjust it to upto 600 now see if it makes a difference but as i was pritning earlier and it done it again (well on all prints) it seems to do the first 2-4 layers fine then has a problem , the motor does not feel hot or anything either.it just sounds like it never moved or a delayed moved like a communication issue . maybe a problem with the stepper itself
     
  4. Jack J

    Jack J Member

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    set the voltage to 608mv and showed almost instantaneous failure causeing the y axis to stop and start on the skirt run rather than the 3rd layer making more of a square than a circle so now dropped it to about 480mw , seems alot less noise in the electrical movements so we shall see how it performs
     
  5. Rob Heinzonly

    Rob Heinzonly Well-Known Member

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    OK. So it indeed looks like a voltage issue then (at the moment at least ;))
     
  6. Jack J

    Jack J Member

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    Yes it's been printing for half an hour now which is the longest yet so might be ok now but will need some more fine tuning. Since it still sounds like a computer ffrom a 70s Sci fi I think turning the x axis down will help . It would possibly been my multimeter is off .1v or maybe it's just it prefers the lower voltage . Who knows but atm who cares
     
  7. Kick2box

    Kick2box Well-Known Member

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    As it's happening at the very first layers already, I would suggest your pulleys are slipping.
     

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