This technique is one of my favorites. I have used in the past on the bodice of this dress made out of plastic bags. It’s difficult to see in this picture, but it added anther layer of interest to the overall design of the dress.
Again, I am practicing on a small piece of scrap fabric to illustrate this technique.
Measure and mark your fabric at one inch increments. You can use a fabric pen or pencil or even cut small slits in the fabric to mark one inch. Mark on both sides of the fabric for straight lines.
Every inch and half, sew a line across your tucks. Switch directions on each line to produce the wave effect. I went through and stitched all one direction before flipping it over to stitch the other direction.
Gently press your new design. It is difficult to get it just right without messing up the wave in the other direction. Pinning down your fabric might help if you need it to be as flat as possible.
I have started a board on Pinterest to house inspirational projects using different textures and fabrics. Check it out!
Also check out other technique I wrote about: pleats