Each snowflake that is found to be the same as all the others is... well... see for yourself.

On another note:

When considering the aesthetics and function of a running machine, the movements are often just as, and sometimes more, important than the layout.  Especially when dealing with such a diverse range of motion as provided by the Tracked Piston Arm, each sequence becomes a delicate dance.  And at the speeds these machines reach when operating at their full potential, the fluidity and grace of that dance (or the lack thereof) can reveal critical flaws in the well-functioning of your process. Simple seemingly arbitrary "optimizations" such as the general "Move then Rotate then Extend" rule can make even quite complicated movements feel smooth and natural.