[XYZAidan] has a process that can recycle paper into 3D cardboard-like objects. You need a 3D printer, but it doesn’t actually print the paper. Instead, you use the printer to create a mold ...

The cross-section of the prism is a regular hexagon ... When a 3D shape is drawn on the grid, the lines will be drawn in the directions shown by the diagram used to orientate the paper.