Why does my sewing machine keep getting unthreaded?
1. The upper thread was not threaded correctly. The spool is not installed correctly, the spool cap is too big for the spool being used, or the thread has come out of the needle bar thread guide. Rethread ensuring that the spool is installed correctly and using a spool cap that matches your spool size.
Why is my thread bunching up?
What should I do if I experience thread bunching? As “thread bunching” occurs on the underside of the fabric, some people think it is due to the lower thread. They check whether the bobbin is sitting correctly in the bobbin case or even replace the bobbin. … On many models, the upper thread tension is set automatically.
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.
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.