Ok, this is not an original motor design – it has many names, Robert Adams Motor, Bedini Motor, a version of a Mendocino Motor, levitating electromagnetic pulse motor, and there are probably more. But I like my name for my particular version. So.
The electrical magnetic kicker circuit design came from here: trainelectronics.com/…endulum/article.htm
and is easy to build with a small parts count and can be used for other projects. I use mine to swing a pendulum – sometimes for weeks on a set of batteries – just for entertainment.
I tried using an Arduino for a kicker circuit but it can either kick but not sense or sense but not kick without going through some gyrations and then you have to have two power sources – one for the coil and one for the Arduino. No thanks. The dedicated circuit works great.
Here is the schematic of the kicker circuit: