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S5 Layer Shift


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Posted · S5 Layer Shift

Hello,

 

For some reason my prints started to shift in the Y axis. It always shift back to the original position after a few layers and the shifts are always towards the front of the printer.

I have tried adjusting the belts, lubricating & aligning the axles, checking for play in the axles, tightening the grub screws in the pulleys, and even switching the X/Y step motors around. Unfortunately none of that helped. The problem happens on different models as well.

I don't know what else to try and would really appreciate some suggestions.

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Thank you,

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    Posted · S5 Layer Shift

    It's usually either excess friction or those grub screws.  Push the head around to make sure friction is simlar in both axes.  I assume you lubricated where they go through the print head and also where they go through the sliding blocks?

     

    Much more likely it's the grub screws.  Usually it's the one on the stepper motor.  If you have a long hex wrench you can get to those without removing the plastic corner-covers.  But removing those covers shouldn't be too bad - I think they pop out.

     

    You really have to tighten the hell out of those locking screws.  The steel tool should twist a bit.  It's usually the screw on the stepper (as that pulley has the most force on it) but it could be the very next pulley connected to the same belt.

     

    The fact that it recovers makes me think it's on the stepper and that the stepper has a rod with a "flat" surface and that the pulley rocks back and forth a tiny bit.

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    • 1 month later...
    Posted · S5 Layer Shift

    Update: It was the stepper motor belt being too loose. I thought it was tight enough but it wasn't. After tightening that belt the printer works perfectly.

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