Why is my zigzag stitch sewing 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 is the difference between straight stitch and back stitch?
Both stitches may slant in any direction. Backstitch: Backstitches define and outline the shapes of a design. … Straight Stitch: To work a straight stitch, bring the needle up from the back side of the fabric. Bring the needle down through the fabric in the desired spot to make a stitch of the desired length.
What is a zigzag stitch good for?
The Zig-Zag Stitch is a very versatile stitch. Use it for seam finishing, applique, bartacks, satin stitching and more. For some sewing techniques with this stitch, it can be helpful to use a Satin Stitch Foot to help prevent the fabric from puckering.