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Answered Prints not printing correctly on first layer

Discussion in 'Troubleshooting' started by Domenic, Feb 5, 2017.

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  1. Domenic

    Domenic Member

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    So ever since friday, when I installed a pane of PEI onto my build plate my prints have failed repeatedly. It is like the filament that is being layed down somehow gets stuck to the extruder and then proceeds to get all globby. I have played around with the z-offset using the M595Z- command and using a business card. I am printing PLA at 195 and bed at 60. Here is a video of some of the failed prints I think these were prints at a .7 and .8 offset. I am trying to print legs for the robo.
    Here is a video



    Thanks for your help
     

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    #1 Domenic, Feb 5, 2017
    Last edited: Feb 5, 2017
  2. Domenic

    Domenic Member

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    I am using mg chemicals skin colored pla
     
    #2 Domenic, Feb 6, 2017
  3. Domenic

    Domenic Member

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    Anyone have any idea what is causing this or how to fix it?
     
    #3 Domenic, Feb 7, 2017
  4. Geof

    Geof Volunteer Moderator
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    I'd start with cleaning the pei. It hates dirt and oils from our hands
     
    #4 Geof, Feb 7, 2017
    mark tomlinson likes this.
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The picture shows what looks like a really nice first layer (where it worked) so I don't think the Z offset is the problem.
    Like @Geof is hinting at -- something is keeping your filament from sticking. That can be the Z offset, but I think not in your case.
     
    #5 mark tomlinson, Feb 8, 2017
  6. Domenic

    Domenic Member

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    ok, I think that I will move the print on the bed and see what happens
     
    #6 Domenic, Feb 8, 2017
  7. allen33

    allen33 Member

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    Assuming you are still having the problem. With a glass bed a little bit of rubbing alcohol on a rag or a paper towel and rub it on the print bed works for me. It works to clean up the oils.
     
    #7 allen33, Feb 19, 2017
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