Why do you always press the hat to the edge of 13, with three stitches and five threads?

Improper tightness of thread and inconsistent thread direction of screw cap.

Improper tightness of 1. thread: Too loose or too tight thread will lead to thread deformation, and it is easy to press the edge of 13, which needs to be adjusted according to the sewing material and thread material.

2. The direction of the capping line is different: when sewing the capping line with three stitches and five stitches, try to ensure that the line direction of the next stitch is the same as that of the previous stitch, so as to keep the line plane and avoid pressing to the 13 side.