Built in Tinkercad using files and parts of Files from Tebee Soot and Steel and aendsor, this is a rough model for the Kato 11-109 chassis.
I did 2 versions, one with the nice sides from aensor and one without.

Dimensions will be all wrong for the purists, but it looks good with Tebee's coaches.

I have printed the Mk2 version out and am currently painting it for use on my layout.

A quick video showing my 'dumb' Mk2 in action is at the end of the images...

https://youtu.be/WbQr6HjYY7U?si=WR9K5r-uDjCfNqPc

Creality

Ender 3 Pro

Yes

Doesn't Matter