Fun With Wheels! Space Engineers Experiment 

refinery wheels pls

Well that was unexpected lol

My best guess is the turbines have a cydrilical hit box while also being set to collisionless status at least on hibox surface. Very interesting.

I wonder if you can do rotor stacking to get faster speeds.

Bay windows ... didnt explode. Michael is disapponted.

Yeah, how odd that the twin turbines which look flat & flappy actually roll smoothly, yet the actually round satellite dish rolls like a square. With all the shaped blocks available these days, I'm wondering how close to round can be made, and at what diameter. If more than today's experimental wheels, then you might reach up to 20 kph.