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 got into 3d printing ages ago by way of wanting to build whacky r/c aircraft (and I had read a thing about it in a magazine. This was late 90’s though and it was completely different then.)
3d printing got me into horology- and designing printed versions of different mechanical clock mechanisms.
this was the first clock I printed. The instructions are easy, even it does take more hardware. It also has remarkable accuracy as far as time keeping is concerned