Wheel and axle was made as a replacement for the New Bright Dickensville Collectables Train Set No. 171L.
I'm sure that it can be resized as needed to fit other battery powered trains.
Print 2 wheels and 1 axle. You may need to clean up the print, depending on how well the brim removes from the pieces.
Put the wheels on the axle and slide towards the middle. Then put the axle on the train. Pull each wheel out towards the edge, leaving enough room so it can rotate freely. Add a small amount of super glue on the inside of the wheel to keep it in place.
Enjoy.
Printed using the following settings:
The author hasn't provided the model origin yet.