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Solved Heat break issues

Discussion in 'Troubleshooting' started by m4r1n5, Apr 13, 2017.

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  1. m4r1n5

    m4r1n5 Member

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    My filament, abs and pla, are getting jammed in the heat break just before the heater block. Any way to fix that? It started a week ago and haven't been able to get a long print going without it starting to swell.[​IMG]
    [​IMG]

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    #1 m4r1n5, Apr 13, 2017
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    which hotend?
    My initial suspect (regardless) would be the cooling fan on the heatsink section.
     
    #2 mark tomlinson, Apr 13, 2017
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  3. m4r1n5

    m4r1n5 Member

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    It started with the original then I bought a e3d clone. Same issues on both

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    #3 m4r1n5, Apr 15, 2017
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Should have gone with the actual E3D :)
    Still it is a cooling fan issue. There should not be melted plastic at the heat break (or if there is then the hotend is not working correctly).
    Try another fan (or a bigger one).
     
    #4 mark tomlinson, Apr 15, 2017
  5. m4r1n5

    m4r1n5 Member

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    I'm getting the "heat creap" between the heater block and the fan. That small space in between. I'm going to buy a ir temp sensor to see if what I'm reading is correct

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    #5 m4r1n5, Apr 16, 2017
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Then there is a problem with the heatbreak itself.
    The issue with many clones is that the heat break (which is a critical part of the hotend design) is simply to working effectively.

    Anecdotal data:
    Our Delta printer came with an HE280 for the hotend and the heat break design on that was garbage. It would frequently cause failures/jams/etc. Since I swapped it to an E3D it has never failed again.
     
    #6 mark tomlinson, Apr 16, 2017
  7. Robert55

    Robert55 Member

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    I just bought some Chinese heat breaks. They were drilled out to 1.8mm instead of 2mm. New filament slides right through. Teeth marks from the hobbed bolt??? Nope. Anyone have a 2mm drill bit??? Lol

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    #7 Robert55, Apr 16, 2017
  8. m4r1n5

    m4r1n5 Member

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    Ill look at another heat break then. Although this happened to the hexagon extruder to, but I had been using black ABS and I've seen a history of issues with that color in a lot of forums

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    #8 m4r1n5, Apr 16, 2017
  9. m4r1n5

    m4r1n5 Member

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    Quick update. Changed the heat brake and the heater block. Runs like an Olympic champ now.

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    #9 m4r1n5, May 8, 2017
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