However, it can control a maximum of 3 axes and cannot be used for applications involving 4 or more axes systems.Ī GRBL-based CNC machine consists of a few basic elements. Its easy-to-use interface and simple configuration make GRBL ideal for beginners and DIY enthusiasts. Therefore, in simple terms, we can conclude that the GRBL firmware translates the G-codes into the movements of a CNC machine. These electrical signals control the motion of stepper motors, thereby controlling the movements of the CNC machine. The GRBL firmware is uploaded on a CNC GRBL controller that processes the G-codes and sends out the electrical signals to the stepper motor driver. These microcontrollers are commonly used with Arduino Nano and Arduino Uno boards. It serves the logic behind the actions performed by a controller system.Īlthough various CNC controllers are available in the market, GRBL firmware is generally compatible with all ATmega328-based microcontrollers. GRBL is compatible with all ATmega328-based microcontrollers that are commonly used with Arduino boards.įirmware is a type of software that is embedded into a controller. It takes G-codes as the input and translates them into the motion of the CNC machine. GRBL is one of the most popular open-source software that guides the motion of a CNC machine.
