From the notes of an alchemist who likes making small machines:

It's natural to experiment with building a machine as small as possible in a single unit. But to build a machine out of three small interconnected cabinets is an extra challenge. When your design involves large molecules, it gets quite finicky. I could barely make this one work at all: I cracked several marbles running the simulation, and once it exploded in my face. (I hadn't even known the marbles could do that! But that's what I get for trying to run it as hot as possible...)