I love cardboard. It’s one of those engineering miracles of the modern world that we use every day without really appreciating. Yes, paper is its own miracle, transforming a plant into a two-dimensional array of fibers, lightweight with great stress strength. But then take that and add some glue and a truss structure? Brilliant. I’ve loved building stuff with cardboard since I was a kid, so of course the first thing I thought of when I saw the Glowforge was “how can I use this to turn a plain piece of cardboard into an entirely different thing?”
(Also I’m really cheap and cardboard is free.)
I was curious how cardboard would flex if it was scored in two different directions, so I ran a diamond pattern on it. You can wrap it into a cone shape, okay… But then I discovered that if you flex it along the corrugation the diamonds pop up. Cool!