Why does my sewing machine keep bunching the thread?
There are several culprits for this ranging from a dull needle, improper threading or tension.
The tension in both your upper and bobbin threads need to be even.
The bobbin could also be placed incorrectly.
More than likely, you forgot to put the bobbin back correctly while cleaning your machine..
How do I stop my sewing machine from bunching up?
Re-thread according to the instructions for your machine. Always thread the sewing machine with the presser foot up. The tension is engaged when the presser foot is down and the thread will not engage properly in the tension discs. Complete engagement is necessary so that the discs can snugly “grasp” the thread.
What tension should my sewing machine be on?
4.5So we’ll be talking only about the top thread tension since that’s where you’d usually make the adjustments. 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.
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.
Why is my bottom stitch bunching up?
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.