https://phys.org/news/2018-05-technique-additive.html > Instead of concentrating on printing precision parts, the project focused on how to put less precise 3-D printed parts together with precise tools, taking advantage of the rapid prototyping, design and manufacturing possible with additive manufacturing. > "That's the nuance that seems to get lost, that you have to design differently," Winrow said. "It doesn't plug into a standard design process."