Since I’m too lazy to draw nice diagrams, I just made photographs of the module at different stages of folding. The module is quite simple, so I hope such
pictures are clear enough. (later note: when I first wrote the line above, I had never run across an origami photo tutorial on the web)
Folding the units
Oxi modules can be used to fold any polyhedra such that exactly three edges meet at each vertex. Additionally, the pathologic case of just two edges meeting
in a vertex, creating a chain of units, can aso be handled. During assembly, first two units are connected together in order to form a single egde of the
polyhedron, and then a number of these two-unit assemblies (macro-modules) are connected to each other, forming the complete model. Each edge looks like
a gable roof and each vertex is similar to a triangular pyramid.