I want to do a u-shaped bug net opening for the hammock I am working on. This means running the zipper around a curve. I know the coil zippers can do this, but I can not find any chart of other figures that give me a radius to follow for the size zipper I am going to use.
I plan on using a #5 continuous coil zipper with a double tab slider so I can run the zipper both from the inside and out. Any suggestions as to the sharpness of this curve. I want to make it as reasonably tight as I can but not crimp it.