Why does my sewing machine keep tangling underneath?
If your sewing machine thread is not properly threaded, the bobbin thread won’t be pulled up into the fabric the way it needs to be. Occasionally the upper thread can catch on a moving part or get stuck, which impedes the easy flow of thread through the needle, creating a tangle.
If the machine is threaded wrong, not only does it make the thread breaks easier, but is also more likely to create loose stitches. Check the threading to see if the thread has passed through the entire thread guides, the take-up lever and the eye of the needle. … Check out the details of threading the machine here.
Stitches are loose on the top and/or bottom
- The upper threading could be threaded incorrectly. …
- Check the bobbin. …
- Change the needle.
- Check the combination of the needle and thread size as well as the fabric you are trying to sew on. …
- Using a scrap piece of material sew out your stitch and adjust the thread tension.
You should see a small screw on the flat/closed side of the bobbin case. Turning the screw a tiny bit counterclockwise will loosen the bobbin tension; turning it clockwise will tighten the tension.
What tension should I use for cotton?
Cotton requires a moderate tension setting, usually between three and four.