[Jon Mendenhall] fixed this deficiency by designing a model roller coaster that accurately simulates a full-sized ride. The track and cart are all made of 3D printed pieces, which altogether took ...

Fast forward a few decades and you have 3D printing ... This 3D model is a fairly standard wind-up car with a plastic spring, escapement, and gear train to drive the rear wheels.

Model trains are practically synonymous with ... to people who know the history of each building. Then he uses a 3D printer to bring them to life. More on Canada Bohaychuk says the goal is to ...