Why is my bobbin thread zig zag?

Why is my bobbin thread bunching underneath?

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.

How do you fix a zig zag on a sewing machine?

Try some of the simple things first. Remove the bobbin plate using a screwdriver and then remove the bobbin. Clean out any lint that may be under the bobbin and which may cause your zigzag stitch not to work. Replace the bobbin and the bobbin plate and test your zigzag stitch.

Why is my bottom stitch not straight?

If your thread is pulled tight on the underside and not forming an even stitch then (counter-intuitively) it’s usually the top thread tension that’s wrong. Sometimes very lightweight fabrics such as sheers can get dragged down into the machine so it’s a good idea to use a straight stitch plate.

Why does my bottom thread keep jamming?

The tension could be too tight or too loose. Set the tension to the basic thread tension setting or adjust the tension manually. The combination of the needle size, thread size and fabric is incorrect. Be sure to use the correct size needle and thread for the type of fabric that you are sewing.

THIS IS AMAZING:  What type of fleece is best for no sew blankets?

Why is my bobbin thread not catching?

Check the upper thread. – Check to see if your upper tension is too tight. … – Your thread could be caught on something between the needle and your spool of thread if so, your thread will be too tight for the needle to pick up the bobbin thread. – Make sure that the upper thread is threaded properly.

Why does my zig-zag stitch go straight?

If the upper thread appears as a single line, the lower thread is incorrectly threaded. Instead of the appropriate tension being applied to the lower thread, it is pulled through the fabric when the upper thread is pulled up.

What does a zig-zag look like?

A zigzag is a pattern made up of small corners at variable angles, though constant within the zigzag, tracing a path between two parallel lines; it can be described as both jagged and fairly regular.

Why does my top stitch look wrong?

Poor thread tension on a machine-sewn seam can result in an unstable seam, puckering, or just plain unattractive stitching. Perfect machine stitches interlock smoothly and look the same on both sides of the fabric. If you see small loops on the right or wrong side, the thread tension isn’t correct.