The term “space-filling” applies to such systems, for example, as sugar cubes packed in a box or the closest packing of identical spheres — like oranges at the market. Space-filling three-dimensional order offers the prospect of adding more and more like-objects in all directions without end. The x-module too is capable of filling space in all directions. Below are examples of how this most versatile of tensegrity modules can be extended indefinitely.
