DYI Electro-Chemical Etching

[Darth Mawr]

I just read of a novel ( and cheap) way to etching metal using salt water, a Q-Tip and a old power supply adapter from an old electrical device such as a radio, cell phone charger, etc. Check out post #2 and look at photos near the bottom of the page here:

http://www.bladeforums.com/forums/showthread.php?p=4384250