I found some sitting persons which I scaled to fit to my G scale model railway (european scale, i.e. 1:22.5). They needed something to sit on. As I didn't find a suitable and easily printable bench, I designed my own.

I wanted to be able to print it without support. With some bridging, this proved to be possible. But a brim is needed to keep the vertical posts on the print bed.

Scaling up and down should be possible up to a factor of 2 in each direction, but I didn't try it.