Making the Edge of the Case --Part Two.
(Rainbow musical instrument cases & bags limited teach you how to make it.)
1.Measure your guitar for the zipper panel.
Measure the thickness or depth of your guitar from front to back to find the width of the zipper panel (The side section of your case that will have a zipper). Add an extra 1 ¼ inch to your measurement for seam allowance, and another ½ inch or so if you want your case to be roomier. Then divide this measurement in half, because you will need two pieces to place the zipper in between.
The length of these pieces is the length of the zipper you bought (approximately half the perimeter of your guitar).
Width of zipper panel pieces = (guitar depth + 1 ¼ inch + ~½ inch) ÷ 2
Length of zipper panel pieces = length of zipper
2.Cut fabric for zipper panel pieces.
Using the measurement for your zipper panel pieces, cut 2 pieces of exterior fabric, 2 pieces of duck cloth, and 2 pieces of fleece/batting. Cut the fleece/batting ½ inch smaller all the way around to reduce bulk when sewing. Place the exterior fabric on top of the fleece/batting on top of the duck cloth, and quilt the pieces together as you did with the front and back panels, using one or two lines across the length of the fabric
3.Sew the zipper between the zipper panel pieces.
Place the zipper face down against the "right side" (the side with your exterior fabric showing) of one of your quilted zipper panel pieces. Pin it in place, then sew together using a zipper foot on your sewing machine.[4] Do the same to attach the other side of the zipper to your second zipper piece. Then press your zipper panel open and top stitch on either side of the zipper, about ⅛ inch away from it for a finished look that will hold your zipper open on the back side.
4.Measure your side panel.
Measure around the outside edge of the front or back panel that you've already quilted. The difference between this measurement and the length of your zipper panel is the length of the side panel (the side section of your case that doesn't have a zipper). Add ½ inch for seam allowance. The width is the same as your completed zipper panel.
Width of side panel = width of zipper panel with zipper
Length of side panel = perimeter of front panel - length of zipper panel + ½ inch
5.Cut the fabric for your side panel.
Using the measurement for your side panel, cut a piece of exterior fabric, duck cloth, and fleece/batting. Cut the fleece/batting ½ inch smaller all the way around to reduce bulk when sewing. Place the exterior fabric on top of the fleece/batting on top of the duck cloth, and quilt the pieces together as you did with the zipper panel, using one or two lines across the length of the fabric
6.Connect your zipper and side panels together.
Line up one end of your zipper panel with one end of your side panel, with right sides (exterior fabric) facing toward each other. Pin and sew these ends together with a straight stitch on your sewing machine, with ¼ inch seam allowance. Repeat with the opposite ends of the two panels. This will create one large loop panel.
