Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I came across this on hackaday and thought it might be of some interest.

http://hackaday.com/2011/03/03/simple-pcb-etchant-made-from-chemicals-you-can-put-in-your-mouth/#more-36512

I use a saturated solution of vinegar and salt as a micro etch after cleaning the pcb and prior to toner transfer. The peroxide is new to me, however. The mixture seems to work quite well, but he doesn't say how long it takes to etch a board.

Here is the site with some chemistry,

http://www.stephenhobley.com/blog/2011/03/02/still-messing-with-forces-i-dont-understand-the-formula/

Baxter