Roberto Saraceno was born in Augusta (Siracusa) on March 21, 1969. He studied Basic programming in his Commodore 64 but also electronics reading some of his father's electronics magazines. It has build many electronics mounting boxes and begins to design the first electronics cards using the acquired knowledge. He then makes some software that he publishes through specialized journals. In 2005, it developed a PIC microcontroller development tool that was very easy to use, especially for non-experts. In the following years he continues to search for something that could combine computer and mechanical electronics. In 2014, it is running one of the first 3D printers and decides to build one. It documents the Internet on existing models and builds a Prusa I3 mounting the Arduino + Ramps 1.4 kit. Designs with a cad of the new pieces to assemble a new model with modifications and decides to use the experience gained in the electronics to design and build a new electronics card with 4 different extruders so you can mix up to 4 colors. To use the card,he write Kontrol3d software that can interface with the electronics card, interpret a gcode file, and control many processes while printing.