This is the development branch for Grbl v1.0 for the Arduino Mega2560 only. All Arduino Uno(328p) references have been stripped and will not work. The intent is to expand Grbl's functionalities ...

Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. This version of Grbl runs on an Arduino Mega2560 only. The controller is written ...

Abstract: The proprietary control of CNC machines results in the inability to control and enhance inputs because the program codes cannot be modified owing to their distribution by vendors in the ...

With the continuing manufacture of new computers, there is a clear and obvious trend of the parallel port becoming less and less common. For our younger readers; the parallel port is an interface ...