Abstract: Provided is a method for preparing sewing guide patterns suitable for constructing groups of patchwork components used in quilting. A rectangular sewing guide outer perimeter exactly includes either two or four congruent instances of rectangular, right-angle triangle or isosceles triangle patchwork components. A nested series of additional sewing guide elements are placed inside the rectangle where the points of each element are placed at the midpoints of the sides of the previous element. The number of elements is selected in consideration of aesthetic objectives. Final sewing guide patterns are prepared by adding a space equal to two times a seam allowance between each of the shared sides of the contiguous instances of the patchwork components in the rectangle and added elements. The pattern is suitable for assembling a plurality of patchwork components by methods known in the art as foundation piecing. The components are released by cutting between the added spaces.

Abstract: Provided is a method for preparing sewing guide patterns suitable for constructing groups of patchwork components used in quilting. A rectangular sewing guide outer perimeter exactly includes either two or four congruent instances of rectangular, right-angle triangle or isosceles triangle patchwork components. A nested series of additional sewing guide elements are placed inside the rectangle where the points of each element are placed at the midpoints of the sides of the previous element. The number of elements is selected in consideration of aesthetic objectives. Final sewing guide patterns are prepared by adding a space equal to two times a seam allowance between each of the shared sides of the contiguous instances of the patchwork components in the rectangle and added elements. The pattern is suitable for assembling a plurality of patchwork components by methods known in the art as foundation piecing. The components are released by cutting between the added spaces.

Abstract: Provided are improved methods for joining two pieces of fabric along a seam (e.g., curved seam) to form a fabric pattern piece (e.g., quilting block unit) using an embroidery machine. A digitized file instructs an embroidery machine to stitch a perforated guide-line in a stabilizer material secured inside an embroidery hoop for forming an opening having a desired shape in the stabilizing material. A first fabric is temporarily affixed to one side of the stabilizer material, and an opening with a seam allowance margin is cut in the fabric along the desired seam defined by the opening/shape in the stabilizing material. The seam allowance margin is folded through the opening/shape to the reverse side, and a second piece of fabric is affixed to the folded margin. The digitized file instructs the machine to stitch a hidden seam along the desired seam providing esthetic, geometrically precise fabric pattern pieces.