What causes thread to break sewing?

When the tension is set too high, the thread is stretched greatly from the spool to the needle, causing great tension in the thread and thus the upper thread breaks during sewing. … Working with a suitable tension can prevent upper thread from breaking when sewing.

Why does the thread keep breaking when sewing?

The upper thread tension could be set too tight. Set the tension to the best thread tension setting or less. Make sure the spool of thread is installed correctly using the correct size spool cap for the size of spool. … Check that the bobbin is wound so that it about 80% full and that the thread is evenly wound.

What tension should my sewing machine be on?

The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.

How do you fix bobbin tension?

To tighten your bobbin tension, turn the tiny screw on the bobbin case a smidgen clockwise. To loosen bobbin tension, turn the screw counterclockwise. A quarter turn or less is a good place to start.

IT IS INTERESTING:  Quick Answer: Can you sew weavings together?

Why is the tension on my sewing machine wrong?

If the bobbin case falls a couple of inches, the tension is correct. If the bobbin case falls several inches, the bobbin tension is too loose. If the bobbin doesn’t fall at all, the bobbin tension is too tight. There is a small screw on the side of the bobbin.

How will you correct a loose top stitch when the needle thread tension is too tight?

If the tension isn’t perfect, fix it by adjusting the bobbin spring; tighter if the bobbin thread shows on the upper layer, and looser if the needle thread shows on the underlayer. Make another test seam, and examine the stitches, repeating until the stitch is balanced.

How do you fix top thread tension?

perfect tension means the stitches look the same on the front as on the back. If the bobbin thread is showing on the top, loosen your tension (decrease the number on your tension indicator). If the top thread is nesting on the bottom, increase the tension (increase the number of your tension indicator).

How do you adjust upper thread tension?

Adjust your top tension if it’s too loose.



To increase your top tension if it’s too loose, turn your knob so that the numbers are increasing. Try ½ to 1 number higher, then test the stitches on a piece of scrap fabric.

My handmade joys