Hey, this is a very short looped animation, rendered with Cycles. I’ve always wanted to create something like this, I was fascinated with these “perpetual” machines as a kid. Check it out, link below. Let me know what you think.
Another angle and lighting setup:
I love the idea, and the detail in your render!
However, it made me feel a bit uncomfortable. Alarm bells were going off as I watched, “This looks wrong!”
Check out this slow-motion pendulum swing, and see how much all the balls move during each swing:
You might be able to improve on your render if you used the physics engine.