Why is the underside of my stitching loose?
A: Looping on the underside, or back of the fabric, means the top tension is too loose compared to the bobbin tension, so the bobbin thread is pulling too much top thread underneath. … In this case, it might be necessary to loosen both the bobbin tension AND the top tension.
What is the best tension setting on a Brother sewing machine?
a. The tension dial should be set between 2 to 6. b. When the upper thread is just visible on the back of the fabric, the thred tension is correct.
How do I adjust the tension on my Brother sewing machine?
Turn the thread tension dial to a lower number (toward the left). (Loosen the thread tension.) When the upper thread is visible from the lower side of the fabric. Turn the thread tension dial to a higher number (toward the right).
You should see a small screw on the flat/closed side of the bobbin case. Turning the screw a tiny bit counterclockwise will loosen the bobbin tension; turning it clockwise will tighten the tension.
What tension should I use for cotton?
Cotton requires a moderate tension setting, usually between three and four.
Why is the tension wrong on my sewing machine?
Needles, threads, and fabrics: Different thread sizes and types on top and in the bobbin can throw off basic tension settings. A needle that’s too large or small for the thread can also unbalance your stitches, because the size of the hole adds to or reduces the total top tension.