Cube-like objects have six named faces: LEFT, RIGHT, TOP, BOT, FWD, BACK. Each of those face names is a vector pointing to the face. e.g. UP is [0,0,1], and FWD is [0,-1,0]. By adding two of those ...

The spheroid() module provides several different ways to make a sphere, and the text modules let you write text on a path so you can place it on a curved object. A ruler lets you measure objects.