Easy Turn Circle Edge

Now as I had explained the Funky Fabric Quilt is made up of circles that are folded over squares. So a neat edge was needed all the way around the circle before it was turned in around the square. I found this method to be the easiest, neatest, and fastest way to do that.
The no-melt mylar will start to warp after repeated use but it does still work.
Also instead of using the no-melt mylar you can just cover a piece of cardboard with foil.