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Thread: Bernina, FMQ and invisible thread

  1. #1

    Join Date
    Jun 2011
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    Arlington, VA
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    I am an art quilter that purchased a 440 about 9 months ago because I wanted the BSR. I'm having a real problem using the invisible and metallic thread with the BSR - the thread breaks. When I asked the dealer about it, I was told the interior of the Berninas get very warm because the gears are all metal. The metal heats up, the thread stretches and then breaks. She suggested I take frequent breaks if I want to use the invisible or metallic thread so the machine can cool down. Is anyone else having this issue? I used the Sulky invisible and metallic thread almost exclusively on my Janome with no problems. This is very frustrating. Any help would really be appreciated.

  2. #2
    Senior Member Hinterland's Avatar
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    Oct 2009
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    Hudson Valley, NY
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    I used invisible thread on my Bernina Aurora 430 without a problem. The brand I used is YLI. Another option would be Superior Monopoly. Since it's polyester, it shouldn't "melt," even though I don't think that's the problem.

    I would check the thread path and make sure the thread isn't hanging up somewhere - sometimes it can get caught on the spool. I had a spool of Sulky, and it seemed prone to tangling up, so a thread net might be useful.

    Janet

  3. #3
    Super Member
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    Might be a burr somewhere. Also, this was recently discussed on one of the Bernina yahoo groups. You could search recent posts or the archives. I wish I remembered the specific recommendations, some of which were to use Sewer's Aid and to position the spool differently. I rarely use those threads, so I wasn't paying full attention.

  4. #4
    Super Member ckcowl's Avatar
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    do you have speed control? i found when i slowed down the thread did not break so much- and finding a better brand/fiber is a +
    make sure you are using a needle for metallics makes a difference too.

  5. #5
    Super Member GwynR's Avatar
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    I had problems with metallic thread and it turned out to be because I was using the wrong needle!
    Sewing at a slower speed helped too.

  6. #6
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    what needle are you using.makes all the difference!

  7. #7
    Super Member Pat P's Avatar
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    a needle for metallic thread helps also > I use a topstitch needle with a big eye.

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