I'm re-using the old seat back foam, and using the old cushion as a pattern to cut the new one. Laying the old seat piece over the new fabric, both with wrong sides up. The new fabric has a subtle stripe so folded the old piece in half to make sure it's reasonably straight.
I'm using the Sailrite Hot Knife and tempered glass to cut the fabric. It's so much easier and time saving since the hot knife seals the fabric as it cuts.
Use the hot knife to cut along the same edge as the old fabric, with just a tiny bit more at the bottom to make it easier to fold and sew.
Use the hot knife to make small notches at center top and bottom, and along the curve where I'd normally clip.
Use pencil to mark darks on the wrong side, and chalk to mark center button location on the right side.
Center button is 10" down from top seam line, and centered.
