E3D V6 PLA and ABS jamming!

Discussion in 'E3D-v6 and Lite6' started by Blue_Alien, Oct 2, 2014.

  1. Blue_Alien

    Blue_Alien Member

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    Hello, I just received my E3D v6 yesterday. I assembled it following the instructions to the letter. I have a 3.0mm direct drive version. I can't seem to get it to print anything at all without jamming. I've tried printing ABS and PLA at 50mm/s and can't get it to work. I have never had these issues with my extruder using a j-head. What's the deal? How can I fix this? Even pushing filament through by hand seems really hard.
     
  2. elmoret

    elmoret Administrator

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    This all points to incorrect assembly, or incorrect temperature readings. Did you change the thermistor setting in firmware? What temperature are you trying to use with ABS?
     
  3. Blue_Alien

    Blue_Alien Member

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    One of the legs on the thermistor broke when I was installing it. Ended up using another 100k thermistor I was using on my last hotend. I kapton taped it into the hole until a replacement arrives. The temperature readings are accurate, just as they were before. For ABS I was printing at 240C.
     
  4. elmoret

    elmoret Administrator

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    100k thermistors all have different calibration curves. Are you 100% certain you selected the right thermistor in firmware?
     
  5. elmoret

    elmoret Administrator

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    Other thing to check - nozzle, heat break, and heatsink are all 3mm, correct?
     
  6. elmoret

    elmoret Administrator

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  7. Blue_Alien

    Blue_Alien Member

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    I am 100% certain that my thermistor works. It is the same one I have been using for the last year getting great prints. It is also the same model I use on the heated bed. They both report the correct temperature when at room temperature. I have gone through the troubleshooting guide. I took apart the hotend and looking in the barrel, there appears to be a rough spot right above the part that would be in the heatblock.

    And yes, they are all 3mm parts.
     
  8. elmoret

    elmoret Administrator

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    You can't say they're accurate based on what they read at room temperature alone.

    What model number is the thermistor, and what thermistor table is selected in firmware?
     
  9. Blue_Alien

    Blue_Alien Member

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    I have the EPOCS 100k thermistor, so #1 is selected in Marlin.
     
  10. elmoret

    elmoret Administrator

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    I'm not sure what it would be then - perhaps Sanjay can comment once he returns. Have you filled out the questionnaire yet?
     
  11. Blue_Alien

    Blue_Alien Member

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    I have not filled out the questionnaire. Where can I find it?
     
  12. elmoret

    elmoret Administrator

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  13. Blue_Alien

    Blue_Alien Member

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    I've filled out the questionnaire. I also received my replacement thermistors today. I switched out my old one for the new one and changed the marlin config to #5. Still jamming...
     
  14. elmoret

    elmoret Administrator

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    Thanks. I looked over your responses and didn't see anything out of the ordinary. It sounds like the problem might be the heat break, but it'd be best to send an email to support@e3d-online.com with a link to this thread so they can chime in.
     

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