Solar Pendulum

September 2022 ยท 1 minute read

In the 1990’s Make Mag published a article on building a solar pendulum. I love the idea of long lasting electro mechanical displays so I built my own version in the style of a clock pendulum.

My version uses a knife edge bearing, a coil I wound myself and was made mostly from found materials (except a single transistor).

Alternative Bearings

I also tested out some magnetic bearing designs but because of the tortional force induced by my pendulum design the knife edge bearing was better suited.