Your spool cap prevents your spool of thread from vibrating and bouncing out of control while you sew. If you’re not using a spool cap, your thread can feed through your sewing machine unevenly and cause thread bunching underneath your fabric.
Why is my thread getting bunched 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.
Why is my sewing machine Birdnesting?
On some home sewing machines birdnesting happens when the line jumps out of the take up lever, which severely reduces tension on the thread, allowing it to be pulled to the bottom of the hoop easily. Unthreaded take-up levers will always cause birdnesting.
What thread tension should I use?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
What is the cause of looper thread breakage?
Bobbin or Looper Thread Breakage
Tension too tight or bobbin over-running. Adjust bobbin case tension. Insert a washer or a spring to prevent over-running. Sharp edges on bobbin case or spring or looper eyelet.
Why is my thread bunching underneath Singer sewing machine?
Thread looping on the underside of the fabric is always an indication that the upper thread is not correctly threaded. This happens when the upper thread is not correctly placed in the tension mechanism and has not been threaded through the take-up lever.
Why does my bobbin thread keep bunching up?
If the thread has knots, is not smooth, is uneven, or is loose on the bobbin, then it has not been threaded correctly. If your machine uses a bobbin case, follow your sewing machine’s instructions to remove the bobbin from the case and re-thread it.