Making Styrofoam Cubes

The best way to cut styrofoam is with a hot wire cutter. These tools usually have a single wire, but someone arranged a bunch of hot wires into a grid to produce a superbly satisfying video. Each time they set a sheet of styrofoam on top of the heated grid, it slides through like butter, creating dozens of foam cubes. We can only imagine the melted plastic fumes.