Pendulum Top

thingiverse

A Science Outreach Experiment Design for Pendulum Tops The pendulum top design is a simple yet fascinating scientific instrument, evolving into increasingly complex forms as scientists seek greater precision. For a small-scale science outreach demonstration, I've created the upper components of a pendulum, which require supplementation by the rod and bob. This design comprises two parts: the Rocker and the Base. Design Description The oval-shaped Rocker rests on two points that can be either printed (refer to the Rocker_Alt design) or secured using two self-tapping screws with pointed tips passing through two 2mm diameter holes. I anticipate that the alternative design featuring printed plastic sharp points will degrade over time due to tip wear, whereas using self-tapping screws will provide a longer-lasting solution. A sharp point is essential for minimizing frictional forces on the pendulum and maximizing its Q-factor. The central hole is designed to accommodate an M4 all-thread bar, which can be cut to the optimal length to support the bob at the opposite end. The Base may be secured within a standard laboratory stand, allowing the pendulum to be suspended from the side of a desk through its rectangular frame. The Rocker balances on two points above it. It's still early days for this design, and sizes may change as development progresses. I hope you find this useful, and I wish you the best of luck with your science outreach endeavors.