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3D Printed Birds' Nest....

Discussion in 'Troubleshooting' started by blykins, Nov 15, 2017.

  1. blykins

    blykins New Member

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    Ok, so twice in a row I have come into work to find the printer in the state as shown in the picture.

    This is a 4d5h print. I get this coming into the 3rd morning each time. Unfortunately, I have no idea on what's happening. The front hot-end magnetic cover is always off. Extruder temp and bed temp are what they should be.

    The last time it happened, I completely deleted the file, brought up the solid model in Inventor, and exported it again into the STL format, thinking that I had a corrupt file. Obviously that isn't the issue.

    I always come in to the printer moving as it should, with the extruder about an inch over the part and dry filament going everywhere....

    Ideas?
     

    Attached Files:

    #1 blykins, Nov 15, 2017
  2. jscottb

    jscottb Member

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    *Some* of it looks like there was a clog, but usually not quite that much. Heat creep maybe? What the extrude and he like after? Do you see a lot of grinding on the filament?

    You may want to turn the cam on for time lapse.
     
    #2 jscottb, Nov 15, 2017
  3. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Could be a micro-clog in the nozzle or incorrect intra-layer adhesion What material are you trying to print?
     
    #3 WheresWaldo, Nov 15, 2017
  4. blykins

    blykins New Member

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    I can print a sample immediately after finding it like that and it's fine, so I don't expect a clog.

    It's PLA.
     
    #4 blykins, Nov 15, 2017
  5. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    I am going to suggest that you take a paper towel and place a drop or two of cooking oil (not olive) and then wipe it along a section of your filament about a foot in length. This will help 'season' your brass nozzle. It is similar in principle to how you would season a cast iron skillet. PLA is a strange type of filament that actually becomes stickier when heated. That might be all that is necessary to eliminate your issues.
     
    #5 WheresWaldo, Nov 15, 2017
  6. blykins

    blykins New Member

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    I would normally agree with you, but it had been printing for 2 days straight, even after having printed other small parts. Again, this is the second time that I've printed this part and it has failed at the same spot both times.
     
    #6 blykins, Nov 15, 2017
  7. jscottb

    jscottb Member

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    If you can figure out what layer it was or close to, try chopping the part up to print from that point and see what it does. I know thats not what you want to do on a nice big printer :)
     
    #7 jscottb, Nov 15, 2017
    mark tomlinson likes this.
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yes, but that isolates it to a model issue or a mechanical issue so -- good idea.
     
    #8 mark tomlinson, Nov 15, 2017
  9. blykins

    blykins New Member

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    Gonna try it.
     
    #9 blykins, Nov 15, 2017

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