You asked: Why is the thread so tight on my sewing machine?

How do I know if my bobbin tension is correct?

The thread should unwind just slightly and the bobbin case should drop an inch or two. If the thread unwinds without resistance and the case slips to the floor, your bobbin tension is too loose. If the bobbin case doesn’t budge, your bobbin tension is too tight.

What tension should I use for thin fabric?

Use size 70/10 for really thin cotton like voile, size 80/12 for light to medium weight cotton, and 90/14 for thick cotton like denim.

What tension should I use for cotton?

Cotton requires a moderate tension setting, usually between three and four. Always start adjusting your tension settings with your upper tension.

Why is thread tension important?

Although it is possible to change the tension of the bobbin thread, it is typically the tension of the top thread that gets adjusted and this infographic shows you how. Understanding thread tension is important because it also effects the pull of the thread on the fabric, which can cause distortions.

What tightens or loosens the flow of the thread?

You’ve probably noticed the tension regulator on your sewing machine. It’s usually a dial with the numbers 3, 4, and 5 highlighted or circled. This regulator tightens, or loosens, the tension discs that the thread passes down through before it goes up and through the looper.

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