This is a reconfigurable toy space station that I made for my kid for Christmas. Emphasis is on modularity and fun rather than an exacting replica of the ISS. I used PLA to make most parts with the exception of the solar panels for which I recommend ABS.
Parts are approximately sized for playmobil figures. You will need an M4 helicoil insert tool to make this design work.
If you want the original design files message me and we'll talk.