Patchwork foot # 57D with guide differs from Patchwork foot # 37 only in that it has a built-in seam guide along the right edge of the foot.
It is therefore particularly suitable for patchwork projects with 1/4” (6mm) or 1/8” (3mm) seam allowances.
Other precision sewing techniques requiring a perfectly straight seam also benefit from the use of Patchwork foot # 57 / 57D with guide.
Here, the edge guide is placed directly against the fabric edge or seam line to yield straight spacings and lines when sewing.
