It's just a 10x10 square with a bunch of paracord loops around it. Nothing fancy. You sure don't need an industial machine with silnylon. Just use a lot of pins because it's very slick. I made it to be a tarp, not a shelter. If someone wanted to make a fancier shelter, a little more time with the design could come up with about anything you want.
Here's a site that sells silnylon seconds at a much lower price. That's what I used and I can't see any problems at all.
SECONDS 
