I have been told that overlapping action is one of the hardest things to get right in animation. And it is true this was not something so straight forward as the bouncing balls that I have made so far, but practice makes it perfect right? (Lets hope for my sake).
So in this attempt I animated just the first joint of the pendulum, making it like a clock, then I created a offset of that same motion to the following pendulums, this animation was mainly made in the graph editor.
Well, here is the planning I made for my pendulum and here it reveals one of the situations were I can still improve. Reduce the pendulum speed more in the ends to create a greater speed contrast.