Why is my straight stitch loose?
The machine is not correctly threaded
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.
Why are my seams wavy?
The weight of the fabric hanging down is often enough to stretch it and cause those wavy seams we talked about before. Steam – If you have already sewn your seam and it turned out a little wavy, steaming the seam can often help smooth it out. Steaming is different than ironing. Do not move the iron back and forth.
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.
What causes uneven stitching?
The most common reason for uneven stitches is old or inferior thread. Another cause for uneven stitches is the fabric is being pulled while sewing. … It is also crucial to check that the bobbin is correctly threaded in the bobbin case, to prevent uneven stitches.
Probable Causes: – Top or bobbin thread is not set correctly. – Make sure that the bobbin was threaded properly in the shuttle race. …
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.