When a critical part fails on a ship out at sea, miles from the nearest port, the crew scrambles to find a solution, knowing that delays can cost millions and repairs might take weeks. In these ...

For a couple of years now, I’ve been trying to find an excuse to buy a decent 3D printer. Friends and fellow Ars staffers who had them would gush about them at every opportunity, talking about how ...

Murray Leinster’s short story Things Pass By, published in 1945, includes what may be the first description of 3D printers: But this constructor is both efficient and flexible. I feed magnetronic ...