As I begin working on user interaction I quickly find that I have merely arranged the component parts in space, and nothing is actually attached to anything else. Initial attempts to rectify this situation lead to some amusing outtakes.

This is also where I learn to stop thinking about movement in absolute X, Y, and Z world axis terms, and start thinking about it relative to a given mesh's top, right, or forward vectors. This shift in perspective makes thinking about where things are and how they move much more intuitive.

A failed attempt at positioning the modules relative to one another the same as they are on the Rack side leads to a modular Cronenbergian monstrocity.

Mag-lev slider handles!