Why is my thread bunching underneath?
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.
What should the tension be 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.
Is higher number higher tension on sewing machine?
When you’re adjusting the upper thread tension on your machine, remember that higher numbers on the dial indicate higher (tighter) tension, and lower numbers indicate lower (looser) tension. Try changing the tension dial up or down one unit.
How do I stop my sewing machine from bunching up?
A good cleaning may solve your bunching woes (check your manual for guidelines on cleaning and maintenance; your machine may also need to be oiled). To prevent stitch glitches, be sure to frequently dust underneath the throat plate and along the thread path, and to periodically clean and oil your machine.