Made this design for a dear old relative that believed in little green men. Might build this for November’s Ultimate Brick Show to go with the STEM train cars at my table display. Or sneak it onto the train layout. 🙂
Thanks. It’s just that little tan 12 tooth bevel gear part number 6589. From one axle to drive shaft and then to UFO shaft. So I figure it should spin noticeably but not warp speed, LOL
The other axle is free rolling pins to help reduce friction at that end with these types of train wheels.