I recall watching Carl Brugeja on YouTube some years ago making tiny motors using PCB for the coils, like this[1] for example. Like you say idea is hardly groun

I recall watching Carl Brugeja on YouTube some years ago making tiny motors using PCB for the coils, like this[1] for example. Like you say idea is hardly groundbreaking, but there's a lot of details to optimize as with any non-trivial engineering project. [1]: https://www.youtube.com/watch?v=oa6sP-joAr8 https://www.youtube.com/watch?v=oa6sP-joAr8