How do you tighten upper thread?
Reduce the tension by turning the upper tension control dial to a lower number. If the upper thread was incorrectly threaded, the upper thread may be too loose. 4. To increase the upper tension – increase the tension setting or turn the knob to the right.
What is the normal tension setting on a Singer sewing machine?
The target figure should be around 30 to 40g. (1-1/4 to 1-1/2 oz) but it does not have to be too precise. However most people don’t have a spring balance handy, so alternatively you can tie a weight of the correct amount onto the thread and then jerk the bobbin gently upwards.
How do you stop loose threads from unraveling?
Tie off the loose threads to prevent unraveling. You will need to tie the threads off to prevent further unraveling. At each end of the opening, you should have two threads, four in all. At one end of the ripped seam, tie these two threads together snugly against the edge of the seam.
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.