Before anything else, I would like to say that this Instructable is based on and inspired by carlbass and his Mechanical iris.
Inspired by his work I quickly put a piece of plywood in my desktop laser cutter and set it to work. Minutes later the promise appeared, and within moments I had pieced everything together in a fully functioning mechanical iris. Awesome!
However, after admiring the design I spotted few ways in which I felt it could be improved.
So here it is; my take on the Mechanical iris (v2.0).