A Unit follows certain rules:

1) There is a central point.

2) From the central point three legs extend through space.

3) Legs follow a logical placement from one another (at 15 degree increments for example tbc.)

4) All legs terminate in a (multi-positional) connector which connects to other legs (This connector is of crucial importance.)

5) The connectors must be of a uniform diameter and surface continuity.

6) A bounding box contains all elements of each Unit and is of a set size, this determines scale.

7) The central point can be anywhere in the bounding box but legs and connectors must always touch the envelope of the bounding box. (This allows for tessellation at a higher order.)

8) A Unit has filleted or smoothed progression from the central point to the legs for aesthetic purposes and to add strength.

9) A unit must never exceed a certain material volume.

10) All above conditions describe one Unit which is then named and may not be geometrically identical to any other Unit.