Block Train

The axles require steel dowel pins (5x60mm), the link provided by the original author uses these:https://www.amazon.com/gp/product/B07MB8QV7J/The axles have been split in half, slide them over the steel pins (glue together if desired).I'm just providing 3mf for the BlockTrain that was created by Zanfar:https://www.printables.com/model/4049-stacking-block-toy-train-mk3