Cortex is the universal controller for CNC machines or industrial automation. It is equipped with the GRBL HALL firmware, a well-known open-source firmware that allows for the control of such machinery, and a customizable and expandable user interface. The controller has been designed to meet the needs of both the industrial sector and makers, ensuring the right level of safety and ease of assembly, thanks to its RJ45 connectors that simplify and speed up wiring, reducing connection errors. In this way, even those without specific knowledge in electronics or informatics can use it easily and intuitively, making work even more manageable. The main goal of the project is to create a community that can develop the CNC technologies, a sector that has been somewhat neglected compared to that of 3D printers, despite its importance in the industrial field. Cortex offers makers and industry professionals the necessary tools to develop and improve their own projects. Its flexibility and versatility make it suitable for various applications in which the control of motors, sensors, and actuators is necessary, in addition to its use on CNC machines.