Thread: What causes birds nests on quilt back? (picture included)
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Old 06-13-2011, 01:21 PM
  #5  
quilticing
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Location: Lake City, MI
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Bottom line is finer. You probably need to tighten the bobbin tension. If there seems to be a lot of slop in the bobbin case, they make washers to fill the space so the bobbin can't spin freely.
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