Programming and Calibration Programming the Arduino Uno is a crucial step in the process. Tinkernut wrote custom code to control the movements of the 3D printing pen.

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.

Arduino, maker of the open source hardware platform of the same name, is teaming up with a startup called Sharebot to sell a 3D printer for about $1,000. Announced today, Materia 101 will be ...

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.