Cardboard Automata Stairs

I started by creating a cad model of my original thoughts in fusion. I originally designed this product to be built in cardboard, but after realizing that it does not have significant structural integrity, i had to 3d print various parts.

I then transformed this basic 3d model into a representation of the motion

This is the finished box in its entirety, the majority of supporting pieces and box material are made of cardboard. The box works by turning the axel using handles on both sides. This turns the cams and pushes the stairs up and down in an alternating order. This causes a marble to rise the stairs and fall down the slide to the end chute.