1. Use carbon paper to transfer your design or pattern onto a piece of supawood cut to the size required for your project. 2. Tape the carbon paper to the supawood to prevent it from moving around.

On a Saturday afternoon in the fall of 2021, Silvio Decurtins was leafing through a paper with a title that could have been pulled from a comic book for mathematically inclined teens: “Plato’s Cube ...