The crank box mechanism is a promising starting point for making 3D printed automata. I already had this sledging penguin model for a paper project (more details here) so I’ve pressed it into service on this project. By fitting it to the top of the crank box I can get an idea of how a sledging penguin 3D printed model might work.


The penguin is fixed to the sledge via a hinge.  A linkage connects to the box top and rocks it back and forth as the sledge moves. The resulting movement is similar way to the paper Runaway Rabbit model.penguin-a02

The mixed media model actually works quite well but I would prefer to make the whole thing as a 3D printed model. Here are my rough sketch for the  part t that I’ll be recreating in Fusion 360. Should be fun!