The Moon Machine
How to wire an arduino-based 3-axis CNC machine
Stepper Motor Arc Reactor
Small Arduino CNC
CNC circuit made easy!!
Arduino 3-axis Mini Lazer Paper-Cutter
Pocket laser engraver.
Grow Your Own Bioluminescent Algae
How to have fun with Arduino (and become a Geek in the process)
S.P.R.E.E. (Solar Photovoltaic Renewable Electron Encapsulator), a Compact, Durable, and Portable Solar Energy Generator
Build a simple Marx Generator