|First, start out by center aligning the piece of elastic on the spot of the fabric you want the elastic. Put a pin in the center of the elastic.
|Now place the fabric and elastic in your machine, with one end of the elastic at the feed dogs when stretched to most of its maximum stretch. Go ahead and anchor the end of the elastic with a few stitches.
|You can now let go of the 'stretch' for a moment. You can see how much gather the fabric is going to happen.
|Arrange your hands again to stretch the elastic until the fabric is flat (no gathering).
|With the zig zag stitch, continue sewing the elastic until you get to the pin.
|You can let go of that first half of the elastic. Pull the pin out.