Closed-loop Control Most stepper-driven 3D printers operate in open-loop control mode. The firmware tells the stepper motor driver to take ten steps forward and hopes for the best.

Both the motor and the encoder are connected to an Arduino Pro Mini which receives step and direction commands from the printer controller.

Open source hardware maker unveils Materia 101, a "precision 3D printer." Read the whole story ...

Arduino may be known for revolutionizing open source hardware platforms, but this week it enters the 3D printer market with the small and affordable Materia 101. Produced in partnership with ...

YouTube channel How To Mechatronics has created a great tutorial with full instructions on how to create your very own Arduino powered 3D wire bending machine.

The concrete 3D printer has been built using an Arduino Mega 2560 based RepRap RAMPS style controller combined with NEMA34 stepper motors.

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.