Assemble the 3D puzzle Pendulum by Wooden City and hang the finished model on your wall, start it up by pulling the driving weight down. The open mechanism will start moving, the gears will start spinning and all the intricacies will come to life! The pendulum will begin to sway steadily in a steady rhythm.
Attach coins to the weight or along the inside of the pendulum. The number of coins affects the swing of the pendulum. Because of friction and changes to the
center of gravity, the heavier the weight, the longer it takes for the pendulum to swing.