Making your own printed circuit board can be a truly satisfying process, tying together electronics and the handmade craft of etching. It's the most accurate way to build a circuit short of sending away to a PCB manufacturer and it's a lot more fun (+ cheaper too!). For a full list of materials used plus more tips for etching & drilling head over to MAKE's site - http://blog.makezine.com/archive/2... more.