We know we’ve told you this already, but you should really keep a close eye on your 3D printer. The cheaper import machines are starting to display a worrying tendency to go up in flames, eit… ...

The railgun’s electronics are based around an Arduino Uno R3 which monitors the capacitor voltage, amperage, temperature and battery voltage to ensure even charging and operation.

Home 3D printers can cost anywhere from a few hundred dollars to thousands. Even expensive models can be frustrating, so the Materia 101's price could be a fair one if it works reliably. Arduino's ...

A DIYer has pieced together a railgun of 3D printed pieces and other parts. The 3D printed prototype made by the U.S Navy is considered legit.