I run a casual quilt club at the Bob’s Sewing and Vacuum in Albuquerque. Recently, we made some quilt blocks using an interfacing method for quick piecing.
Many manufacturers make fusible interfacing that has a grid printed on it. To make these blocks you start with cutting your fabric to match either the size of the individual printed squares or a proportion there of.
Fusing all of the squares onto the interfacing doesn’t occur until all squares are placed. To keep the pieces from shifting I dabbed a bit of glue from a purple glue stick onto the back of each piece. I had to learn this one the hard way when a really cool Celtic knot shifted terribly when I moved from my work space to my ironing board.
After all of the pieces are fused with a hot iron, you sew all of the seams along one axis, right sides together at 1/4″. Sew all of the seams on that axis. You then carefully cut open each “seam tube”. It is possible to just use a rotary cutter to cut the closed seam off, but I find this removes too much material. You have to press these seams open. It is super important to lift and press and use the tip of the iron to help open the seams to prevent erroneous creasing.
Once all of the seams have been opened, you stitch on the opposite axis. Cut the seams open and iron open.
TIP: When sewing the pixels together, crease the fabric along the line of the pre-printed grid and not where the fabric is folding from piece placement. This will ensure more accurate seam junction and precise grid size.
The grid that I found is on point (not cool on point, but where the squares run diagonally instead of vertically or horizontally). To make the illusion of a heart instead of a blocky mess, I had to make 4 of the squares into half square triangles. If you want the same color of half square triangles, you can use the 4-at-a-time method with no waste. If not, just use the traditional method or any other half-square triangle method you fancy.
Next time, I’ll talk about how I decided on a final layout and quilting design!