A 3-Axis CNC Plotter using Arduino is a computer-controlled machine that can draw, engrave, or cut on a flat surface using precise movements along the X, Y, and Z axes. It uses G-code commands to control stepper motors, allowing automation of designs on paper, cardboard, wood, or PCB boards. This project is ideal for engineering students, hobbyists, and small-scale fabrication labs.

Parts Used:

1. Arduino UNO – main microcontroller for G-code interpretation
2. Stepper Motors & Drivers (A4988 / DRV8825) – control axis movement
3. Linear Rails & Bearings – for smooth motion
4. Lead Screws / Timing Belts – to move axes precisely
5. Pen / Marker / Engraving Tool Holder – for plotting or engraving
6. CNC Shield – connects Arduino to stepper drivers
7. Limit Switches – for axis end detection
8. Power Supply – to power motors and controller
9. Software – Inkscape + GRBL Controller for design and G-code