Why does my thread keep jumping out of the needle?
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.
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.
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 is the cause of needle breaking?
There could be several reasons why the needle keeps breaking. Make sure the needle is correctly inserted with the flat side facing the back and pushed up into the machine as far as possible. The needle could have been damaged or bent. … The combination of needle size, thread size and fabric is incorrect.