Learn how to build a mini CNC drawing machine using Arduino in this simple DIY project. This video guides through the process of creating an easy drawing machine at home, perfect for beginners.

Forget printing circuits: how about drawing ’em instead? At least, that’s what you can do with this rollerball, which spews out conductive silver ink to let you doodle circuits all day long.

After you’ve taken the plunge and decided to learn how to etch your own circuit boards ... and turn making a homemade Arduino board an exercise in frustration and improving your vocabulary ...