Body parts, jewelry, food: what once required extreme craftsmanship and an incredible amount of time and resources is being reduced to an afterthought. Our grandparents would never have believed that we could sit at home andprint a feedwater heater for a 1907 White Steamer, but that’s exactly what’s happening. Although 3D printing may break down barriers and revolutionize manufacturing, we’re quickly learning about a number of dangerous drawbacks.