aframe-site | : a : Official A-Frame site | Augmented Reality library

I am trying to apply different images to the various sides of a cylinder. I have tried using the cubemap method as described here but it is not working. Should this work at all? Or is there another way to add multiple images to this shape? It would be good to understand how to add different images to different sides of various shapes, or is this only possible with cubes? Here is what I am trying;