“This instructables will guide you through the process of changing your old CNC electronics taht still use the parallel port. This can come in handy if you don’t have a computer with parallel port or do not have a converter, but even more important this conversion will allow you to control your CNC without the need for a computer or an embedded computer. Fro this we will use the Arduino Mega 2560 micro-controller and Repetier firmware with active CNC mode on.”