This is the 2nd train car I designed in my effort to print a train. The first car was the engine. Link: Train Engine
The Coal Car was fun to design. Instead of spending hours on Tinkercad finding the right shape for the coal container (I didn’t want a box), I duplicated the same shape and just slightly increase the size until I had the height I wanted.
The joint to connect the Engine with the Coal Car actually worked. It was tested previously, but to see it function was amazing.
Object Size (W, D, H): 25, 55.97, 42 mm