bobbin thread popping up on quilt top
#1
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Join Date: Oct 2013
Posts: 6
bobbin thread popping up on quilt top
I just purchased a juki 2010 and have been practicing FMQ. Trouble I am having is bobbin thread poking on quilt top. Not much, but nothing I adjust seems to help. I don't have this problem with my old Bernina and I am at a loss what to do to fix the problem. Usually I quilt with same color thread on top and bottom, but I have a quilt that needs to have a different color on bottom. Any thoughts?
#2
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Join Date: May 2011
Location: Pacific NW
Posts: 9,418
You're pretty vague when you say nothing you adjust seems to fix the problem. Bobbin thread on top means your bobbin tension is too loose, or your top tension is too tight. Have you tried adjusting your bobbin tension?
#3
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Join Date: Oct 2013
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Tensions were adjusted at store where I purchased machine, but I did try to adjust tensions again. It is not enough to make the stitch unsound...just a tiny speck that will show. I know from reading different blogs that some people never quilt with two different color threads for this reason, and was just wondering if anyone else used this machine and possibly there is no fix
#6
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Join Date: Mar 2011
Location: Ontario, Canada
Posts: 41,476
A perfectly balanced stitch will combine in the sandwich with no loops showing on either side. Sounds easy in theory but I stick to the same colour of thread in the bobbin and spool to avoid problems. If the quilt is for yourself, washing the quilt will usually puff it up and the thread will be pulled down farther into the batt.
#7
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Join Date: Dec 2008
Location: Western Wisconsin
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It is more difficult to achieve all balanced stitch when FMQing because, as you move the quilt around in different directions, tensions change in subtle ways. I have a Bernina 1230 and -- although wonderful in every other way -- I have never been able to use two different colors of thread when FMQing. With mine, the problem is intermittent in that sometimes the bobbin thread shows on top and sometimes the top thread shows on the bottom. I am convinced that some machines simply cannot achieve and maintain perfectly balanced tensions when FMQing.
If you are working on a wallhanging, I would advise adjusting so that top thread shows on the underside; that way the top should be fine. If you are working on a quilt that will be washed, be aware that in the first washing this issue usually goes away what with changes in fabric and batting. The biggest problem would be in a show quilt when you do not want to wash the finished quilt before putting it on display.
If you are working on a wallhanging, I would advise adjusting so that top thread shows on the underside; that way the top should be fine. If you are working on a quilt that will be washed, be aware that in the first washing this issue usually goes away what with changes in fabric and batting. The biggest problem would be in a show quilt when you do not want to wash the finished quilt before putting it on display.
#8
I was so happy to see this thread (no pun intended) I have a Janome and have issues with the bobbin thread in loopy FMQ. Straight or loose meander is fine but as soon as I try a loop....argh! I hate playing with the bobbin tension so will try loosening the top thread tension. Thanks!!
#9
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Join Date: Jul 2010
Location: Ohio
Posts: 2,148
the way to test your machine tension is to sew a straight line on the bias/diaginal: gently pull the fabric fabric by holding the ends of the stitching line. If the tension is even then the thread will not break. if the top thread breaks then the top tension is too tight: if the bottom breaks then the bottom tension is too tight. keep adjusting the tension u til the thread does not break. All that said: I have found that it is really hard if not inpossible to get the tension balance when doing FMQ. for that reason I use matching thread on the top and bottom.
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Cecilia S.
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09-26-2013 05:12 PM