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another post about filament stops extruding

Discussion in 'Troubleshooting' started by neal, Oct 28, 2013.

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  1. neal

    neal New Member

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    bed temp is 95 on first layer 90 after that
    extruder is 220 the 210 after first layer. I have been printing fine for a week or so until my heat bed wire sheered off. I have fixed that but now my plastic is not coming out of the extruder.
    I can manually force it threw. I have seen some mention of a hobbit bolt to switch out. where can I get one to fix my robo3d printer diameter 1.75. if possible please provide a link. I have tried a lot of thing including clearing the teeth etc nothing fixes it. here is a pic also I am at the middle of my first spool 2.2 lbs There is a lot of twisted tension I can see from plastic coming off the spool.
    Thanks fro any help.
    Neal
    IMG_20131028_210253644[1].jpg
     
    #1 neal, Oct 28, 2013
  2. tesseract

    tesseract Moderator
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    #2 tesseract, Oct 28, 2013
  3. neal

    neal New Member

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    Thanks I ordered it will update you when I swap it out.
    Neal
     
    #3 neal, Oct 29, 2013
  4. tesseract

    tesseract Moderator
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    it is an easy swap maybe 5-8 minutes depending on you just remember position the washers so the recessed part aligns directly with the hole where the filament goes in.
     
    #4 tesseract, Oct 29, 2013
  5. neal

    neal New Member

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    Swapped out the bolt. this fixed the issue. If this is a common issue I hope future shipments of the printers will have the new bolt.
    Thanks
    Neal
     
    #5 neal, Nov 2, 2013
  6. 1d1

    1d1 Active Member

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    Yes! The China built ones (if mine is a typical example) already have the grooved, hobbed bolt. And now I have an extra 'cause I had already purchased one ahead of getting the printer.
     
    #6 1d1, Nov 3, 2013
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  7. marty williams

    marty williams Member

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    Can someone post a picture of what a bad hobbed bolt looks like, so I can compare what I have with the good bolt and the bad bolt?

    Thanks,

    Marty
     
    #7 marty williams, Nov 21, 2013
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The pic at the top of the thread looks like the 'bad' one.
     
    #8 mark tomlinson, Nov 21, 2013
  9. tesseract

    tesseract Moderator
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    Marty the recessed area is very evident it simply is a groove in the bolt and inside the groove are the hobbes(is that a word)
     
    #9 tesseract, Nov 21, 2013
  10. marty williams

    marty williams Member

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    If it's not a word, it should be. :)

    Thanks.
     
    #10 marty williams, Nov 21, 2013
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