3D printing socks isn’t really a thing yet. You’d end up with scratchy plastic garments that irritate your feet no end. You can easily 3D print all kinds of nifty little mechanisms, though, so why not ...

In a workshop that’s a refuge from the world, Dorothea Campbell uses her hands. Her right hand turns a crank, or manipulates dozens of needles arranged in a circle. With her left, she holds tightly to ...