Is my bobbin tension too loose?

What happens if bobbin tension is too 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. By tightening the top tension, the loops will stop, but the added tension may cause breakage, especially with sensitive threads.

How much tension should a bobbin have?

Proper bobbin tension is essential to good embroidery. If tension is too tight, unwanted bobbin thread may begin to show on top of your garment and you may begin to experience frequent thread breaks which wastes time and money. Bobbin tensions should be 18 to 22 grams (up to 25 grams when embroidering caps).

Do I need to adjust bobbin tension?

Bobbin thread tension has been correctly set at the factory.

The bobbin tension can become looser even if you haven’t changed the setting yourself. Sometimes it’s still necessary to loosen or tighten the bobbin tension. You can change the front loading bobbin tension easily. But with drop-in bobbins – it’s not so easy.

How do you tighten thread tension?

Changing Bobbin Tension

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.

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