Not so fast. Depending on the nature of the design, you might want to follow this nice tutorial from [Willy Nicholas] on how to quickly make a cardboard prototype. Now, obviously this won’t work ...

A drawing cannot truly capture the tactile, three-dimensional visualization that a cardboard prototype provides, making it easier to assess if the design concept works or if it meets expectations.

After the exhibition, Bridge plans to build and road test a fully working prototype. "We'll see where it goes from there," he said. The frame is made from a heavy-wearing cardboard called Hexacomb ...