Curved seams for many years are considered a sign of poorly made things. In order not to become an object of inappropriate jokes, learn a few secrets of making perfectly smooth machine lines. Special assistants for sewing machines will act as assistants in this difficult task.
Paw with transparent panels
Such a device allows more precise control of the direction of the seam. You can adjust the width of the indent by attaching a bright marker to the foot.
This device is used to apply the seam at a certain distance from the bend. The right edge of the foot is aligned with the edge of the part, and the needle must fit into the right groove. Thus it is very convenient to sew a wide band and a slanting inlay.
Edge foot with special guide
A special separator controls the seam indent. Fabric and needle are placed on the left side of the stitching.
Two legs for double seam
In order to make a smooth double seam, you can resort to the following method. To begin with, a foot is installed with a stop on which a seam is made near the very edge of the fabric. Then the foot changes to a wider one, which makes it possible to carry the second seam a few millimeters further.