Mistakes & fixes

Fabric gathering into folds right at the needle instead of feeding smoothly usually means too much foot pressure, a dull needle, or bulky layers meeting at once. Reduce foot pressure and pivot slowly over intersections.

Fabric that stalls under the presser foot is typically caused by dropped feed dogs, too-light foot pressure, or lint packed under the plate. Check the feed dog setting, raise foot pressure, and clean out lint.

Pattern pieces ending up slightly distorted despite careful layout often come from fabric sliding under the pattern weights or shears as you cut. Use a rotary cutter with a mat, or weight the pattern heavily.

Layers shifting out of alignment as they're stitched, common with silky fabrics, comes from insufficient friction between layers and the feed dogs. Pin generously, hand-baste, or use tissue paper and a walking foot.

A seam that ends up longer than the fabric it was cut from, common on knits and bias cuts, comes from the foot or hands pulling fabric taut while sewing. Support the fabric's weight instead of pulling it.

A loop of thread pulled from a knit's surface, leaving a puckered dot, should never be cut. Use a small crochet hook or needle to work the slack back to the fabric's wrong side.

Corduroy or velvet that looks crushed after ironing comes from pressing directly on the pile with a flat iron sole. Press face-down on a towel or use a needle board so the pile can stand.

Cut edges unraveling before a seam is even sewn is common on loosely woven fabrics like linen. Finish edges early with pinking shears, a zigzag stitch, or fray-check liquid.