Christmas Rail Car 4
![Christmas Car #45.jpg](/proxy/?url=https://content.instructables.com/FI3/Q3FB/I0HYQ0VQ/FI3Q3FBI0HYQ0VQ.jpg&filename=Christmas Car #45.jpg)
This is rail car number four in what (I hope) will be a series of ten, one published every two weeks until Christmas. This O gauge car (wheels, axle, coupler and bed are all 3D printed plastic) is part of an active train.
![Christmas Car #41.jpg](/proxy/?url=https://content.instructables.com/FF9/2PI6/I0HYQ0WO/FF92PI6I0HYQ0WO.jpg&filename=Christmas Car #41.jpg)
Print the base, two sets of wheels and the propeller.
Print files can be found at:
![Christmas Car #42.jpg](/proxy/?url=https://content.instructables.com/FJV/9CFT/I0HYQ0WR/FJV9CFTI0HYQ0WR.jpg&filename=Christmas Car #42.jpg)
Insert the wheels.
![Christmas Car #43.jpg](/proxy/?url=https://content.instructables.com/FAZ/TQZ2/I0HYQ0X4/FAZTQZ2I0HYQ0X4.jpg&filename=Christmas Car #43.jpg)
Push a pin into the top hole.
![Christmas Car #44.jpg](/proxy/?url=https://content.instructables.com/FFD/ZR9F/I0HYQ0Y6/FFDZR9FI0HYQ0Y6.jpg&filename=Christmas Car #44.jpg)
Place the propeller on the pin.
![Christmas Car #46.jpg](/proxy/?url=https://content.instructables.com/F7F/BDQD/I0HYQ0W3/F7FBDQDI0HYQ0W3.jpg&filename=Christmas Car #46.jpg)
Bend the pin so that the propeller will be facing forward when the car moves.
Get up some speed and the blade will spin!