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  1. #11
    Replaced the entire hot end assembly and new bed cover. Printed about 30% of the file, then jammed again.

    https://www.amazon.ca/gp/product/B07...?ie=UTF8&psc=1

    Now I'll be replacing the extruder with an aluminum upgrade.

    https://www.amazon.ca/gp/product/B07...?ie=UTF8&psc=1

    Will keep you all updated. Thanks again for the quick replies and info.

  2. #12
    Wanted to share some happy moments until about 3 hours ago.

    As you see I replaced the feeder and hot end. Last night yielded the best print ever with the
    upgraded parts.

    Then an attempt for a second print this morning resulted in another jam after about an hour.
    I'm not sure if it was the Flow Rate which was previously 75, then set to 100.

    Anyway...it took me a couple of hours to dislodge the PLA from the brand new Teflon tube.
    Then, one of the bed clips got jammed between the bed and post.

    Since that point, the feeder motor won't feed.
    Swapping motor harnesses proved out that all motors work, so it's possibly a micro-fuse, or
    regulator that has blown apart...

    I tried unplugged and resetting the system, but no luck.

    If I can't see any obvious damage on the circuit board, I'm thinking a new circuit board/printer
    is in my future.



    MVIMG_20200923_075610.jpg

  3. #13
    Looking for one last attempt before I toss this printer out the window.

    After $150 in upgrades, shipping, etc. I'm still not getting anywhere. The entire printer is nearly rebuilt INCLUDING a new mother board (quiet drive technology), entire hot end assembly, and aluminum feeder, and bed substrate.

    Still getting jams at the hot end, but more an issue is Adhesion to the bed.I've tried:

    - bed temp from 65-75 (normally set to 70).
    - Nozzle 200 degrees
    - bed clearance 1 sheet of paper "tight, or loose resistance"
    - 0.003" - 0.005" with feeler gauges even!
    - Fan 0, Fan 75, Fan 100
    - Flow 75, or 100
    -3 brands of PLA (also happens with PETG, but let's not go there!)

    LAST SETTING FOR PHOTO BELOW:
    200 nozzle, 75 bed, flow 75, 0.005" bed, fan 100


    WHAT WOULD JESUS DO!!!???!!! ender1.jpgender2.jpg
    Last edited by YellowGTM; 10-08-2020 at 03:54 PM.

  4. #14
    We're getting closer. Was able to print something (9 hours), but not without issue - blobs!


    Then this morning, I'm getting more blobs. The nozzle catches
    the high spots, and kicks the substrate right off the bed. :/


    It seems like the hot end is too hot, so I'll try to
    reduce the heat by 5 degrees, and reduce the flow from 75 to 70.


    Anything else to try? I'll hit up YouTube and Google, but your ideas are always great!


    blobs.jpg

  5. #15
    I'm onto my 3rd consecutive print, and getting better with each adjustment.

    191 degrees nozzle
    75 bed
    70 flow
    100% fan

    That's a huge difference from factory settings where a full year of printing happened without issue.

    I'm not sure what the root cause is/was, but I suspect more than one problem contributed to this madness.

    I'll keep a close watch on the PLA manufacturer and quality going forward.

    More updates when I can figure out why the little blobs are still happening!

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