Horizontal offset afer hours of print, Help please!

Discussion in 'Calibration, Help, and Troubleshooting' started by rvator, Sep 17, 2017.

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  1. rvator

    rvator Active Member

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    I have sporadically horizontal offsets during the print. Sometimes after many hours. In the image below it is a 3mm X-shift after 13h print time.

    By chance, I could observe the behavior one time. There was a severe oszilation/wobble with a high frequency and a small amplitude over a duration of 1-2 seconds. Afterwards the print went on with a horizontal offset.

    Edit: I am no more shure about the oszilation, this could also have been a zig-zag movement during a small infill.

    I have no idea, what I could do.

    Scratch built Bigbox dual hybrid, Rumba board & DRV8825

    after_13_hours.jpg
     
    #1 rvator, Sep 17, 2017
    Last edited: Sep 17, 2017
  2. Kanedias

    Kanedias Well-Known Member

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    Did you loctite all the grub screws on the pulleys?
     
    #2 Kanedias, Sep 17, 2017
  3. Greg_The_Maker

    Greg_The_Maker Administrator
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    check the wires aren't worn out in the drag chains. I had a real pain of figuring it out.
     
    #3 Greg_The_Maker, Sep 17, 2017
  4. rvator

    rvator Active Member

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    Yes, and I put a drop of thread locking paint on to notice any movement.
     
    #4 rvator, Sep 17, 2017
  5. rvator

    rvator Active Member

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    Did you mean broken wires? I will check the wires!
     
    #5 rvator, Sep 17, 2017
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