This blog is about process of making simple animation of Pendulum movement.
Version One
I tried to animate the Pendulum, and in this version the Pendulum swings too much at the top (sketch of 5th step) of my animation. This was because I had a problem with the planning. Then I kept trying to change this problem, pendulum still showed not good, therefore I got the animation of pendulum back to the parallel movement shown in the Final Version.
Sketch

Final Version