Why is the bobbin thread looping and catching on my sewing machine? The stitches are uneven, too
I have adjusted the tension on my sewing machine, but the bobbin thread has loops that catch and won't allow the fabric to feed through the machine unless I help it through. Also the stitches are uneven and the feed dogs don't seem to be working either. How can I adjust my machine to resolve this problem?
Sewing Machines - Dual Sew - 3400 Mechanical Sewing Machine
Answers & Comments
Hi Sylvia,
Your problem is an un-matched tension of the threads. You mentioned doing an adjustment recently. That is the problem area.
If your bobbin thread develops loops on the top side of the fabric, you need to tighten the bobbin tension.
There is no easy method for this and you will have to do it slowly -
tighten, test, re-tighten, test.... until you get a near perfect stitch.
I haven't come across a portable device specifically designed to set thread tensions.