My sewing machine is either pulling the bottom thread straight and the top thread is looped, (so that it gathers when you pull the bottom thread) or the top thread is pulled taut and straight, and the bottom thread is pulled to the top, and shows ( so that it gathers when you pull the top thread).
My Brother BM-2600 did not come with instructions (some kind of mix up) or a bobbin case of any kind, so I don't even know if I need one!
I'm almost positive it is a stitch tension problem, but I don't know how to fix it, or even how to adjust the bottom tension. (Every so often it develops snarls of thread on the bottom. I think the bottom tension is too loose, but, I don't know how to fix that on my machine.)
Thank you, thank you! I just tightened the screw on my bobbin case and that instantly fixed my thread tension problem. How on earth are you supposed to know about the little screw?! I thank you so much for the tip!
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Sounds like the upper tension needs to be tightened, or the bobbin thread needs to be loosened. At any rate, the tension is correct when the two threads meet in the middle of the fabric for general sewing.
For free motion quilting, the tension should be adjusted so that the bobbin thread does not show on the top of the fabric, however, it should not lay in a straight line like it sounds like it may appear currently. What you are currently producing is a gathering stitch where the bobbin thread can be easily pulled.
I would start by re winding your bobbin and making sure that it is done though all the correct tension loops. A bobbin that is wound to tight or loose can cause all sorts of problems. If that has been done then completely rethread the machine from scratch. Now go through and check all your tensions, it sounds like the bobbin tension is too loose and your stitch tension is too tight. Adjust and try again.
Loosen the top tension until you see little loops on the bottom. Lengthen stitch length. Test first on scrap to get it down... sew a line then gather by pushing and pulling the bobbin thread. (don't pull it out!!)
Another way to do it without a special foot is to zig zag over a cord. :)
Once you have the gathers distributed... re-tighten the top tension and test on scrap again... then stitch your gathers in place.
try changing the needle rethread the machine top & bobbin make sure the bobbin is not warped or damaged adjust the top tension one number or letter higher till the stitch looks normal if these suggestion don't help then the machine needs to be serviced
Load your sewing machine with one color on top, threaded through the needle. Load the second color thread into the bobbin and thread.
Fold the scrap fabric in half, and sew a straight stitch at least 2 inches long. Look closely at the seam. If you see loops of the bottom color thread on top of the fabric, proceed to Step 3. If you see loops of the top color thread on the bottom of the fabric, proceed to step 4.
Loosen the top tension. Since the top tension is so tight, it is pulling the bottom thread up through the fabric. Loosen the top tension by turning the numbered knob on the front of the sewing machine counterclockwise by one number.
Tighten the top tension. Since the top tension is too loose, the bottom thread is pulling the top thread down through the fabric. Tighten the top tension by turning the numbered knob on the front of the sewing machine clockwise by one number.
Sew a straight stitch 3 inches in length. Check the stitching. It is perfect if the threads meet in the middle, and you can only see the top thread on top and the bottom thread on bottom. If it still needs adjusting, go back to step 2 to repeat the needed steps.
Using two different colored threads makes it easier for you to see which thread is being pulled.
Always use proper precautions when working with electrical machines.
Loops on the bottom of the fabric direct the problem to the top thread. Rethread again and make sure the thread goes through the tension discs. Lift the foot, because this is what opens the discs. When sewing and the foot is down, the discs should be closed and thus giving the upper thread the tension it needs.
Hi, general rule of thumb:: loops on the top, problem on the bottom.. Loops on the bottom, problem is on the top.. When threading your machine, stop just before you thread your needle, put the presser foot down. Try pulling the thread. If it pulls easily, the thread is not thru the tension wheel right. If it pulls hard, you got it right.
Sometimes when I need to use heavy thread for top stitching to reinforce a seam that has come undone, I will use the heavy thread on the top and regular thread on the bottom. I haven't tried it the other way around for hemming but I would think it would work. I do not currently have a Bernina.