Think about air ducts that cool the part after printing. In theory, it should be easy to design a new duct. But how does it perform? Empirical testing can be difficult, but [Mike] shows how you can ...

Slowly but surely, 3D printers are getting cheaper, better, and drastically more accessible. In the early days, there were only a few models on the market, and most of them were clunky, tricky to use, ...