A CNC plotter machine controlled by an Arduino Mega is a computer-controlled device used for precise plotting or drawing. It operates by moving a pen or other drawing tools across a surface using motors, typically stepper motors. The Arduino Mega serves as the brain, receiving instructions from G-code, which directs the machine to move along the X, Y (and sometimes Z) axes. The machine is commonly used for tasks like creating detailed designs, writing text, or drawing shapes on paper, wood, or other materials. It's widely used for DIY projects and educational purposes due to its affordability and customization options. 

We are excited to share our latest project: an Arduino-based CNC plotter! While this is not our final planned project due to its initial high costs, we made strategic changes to reduce expenses. By switching to 3D-printed plastic parts instead of metal bars and using midrange stepper motors, we successfully reduced our budget from LKR 38,000.00 to below LKR 7,000.00.

The journey was challenging, often requiring us to rebuild parts using epoxy resin. However, perseverance paid off, and we achieved a satisfying result. Coding and testing were particularly demanding, especially since this was our first experience working with Arduino technology. Despite the hurdles, the experience has been incredibly rewarding.

This project not only deepened our understanding of computer architecture but also provided valuable hands-on experience that will benefit us in our academic and professional pursuits. Although we still need to adjust some codes to support the Arduino Mega chip (as it was initially designed for Arduino Uno and Nano), we are determined to overcome the current challenge of connecting the Arduino board to the Universal Gcode Sender.