Arduino CNC 2D Circuit Plotter

01 · The problem

Chemical PCB etching is messy and hazardous for prototyping.

02 · Approach

1. 1

   Designed PCB layouts in Autodesk Eagle; generated G-code via Benbox / Inkscape.

2. 2

   Drove DVD-stepper motors (X/Y) and a servo (Z pen-height) with an Arduino Mega + L293D shield.

03 · Outcome

A working conductive-ink plotter as a chemical-free etching alternative.