DIY Prop Shop has posted a tutorial to show you the tools, steps, and techniques you need. The Companion Cube is a delightful character in the Portal series. Now, you can make one of your own.

3D shapes can be made from 2D shapes called nets. Watch the video to learn how 3D shapes, such as a cube, can be created from nets, an arrangement of 2D shapes. Let's talk about nets. More ...

Some 3D shapes, like cubes and pyramids, can be opened or unfolded along their edges to create a flat shape. The unfolded shape is called the net of the solid. Here are some 3D shapes and their nets.