Bird nests occur when thread bunches up underneath the needle plate, causing broken threads, skipped stitches, and uneven tension. This is typically caused by the tension balance being out of whack or the top thread is not threaded correctly.
How do I stop my threads from nesting?
How To Avoid Thread Nests While Sewing
- Rethread. Remove the thread spool and bobbin; rethread your sewing machine with the presser foot up. ...
- Replace Needle. A damaged or dull needle may be the problem. ...
- Testing 1, 2, 3. Use threads of different colors in the needle and bobbin to stitch a test seam.
Why does my thread keep wrapping around the bobbin?
If the upper thread is incorrectly threaded, the upper thread passed through the fabric cannot be firmly pulled up and the upper thread becomes tangled in the bobbin case, causing a rattling noise. Remove the tangled thread, and correct the upper threading according to the following procedure.
