What is a niche hobby of yours that you are fascinated by and would like to share with others?
I'll start. I have recently gotten into 3D printing, and, while incredibly frustrating sometimes, there's nothing more rewarding than getting a perfect print.
I have a fascination with VFDs/VVVFs/frequency inverters.
They are the controllers that gives of a specific hum/whine from electric trains/cars and from other 3 phase electric motors.
I'm making my own sudo-vvvf at home.
I just think they sound awesome and are Hella cool
That's really dope!! I've heard about this a few times. So you have a good video or site you could recommend that explains for layman why they do that?
I can suggest simply looking around YouTube. That way you can get a sense of how they work and what kind you'd like to know more about.
I happen to have practical experience with the, because I used to work on trains that had some giant versions