[Noisebridge-discuss] Help with Eagle CAD

[Mike Hatalski]

(Just lurking on the list & wishing I could be up in the bay area with you 
guys...)
Has anybody tried etching with acid Cupric Chloride? Seems better for the 
environment (reusable).
http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/
http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/index.html

--Mike

----- Original Message ----- 
From: "Jonathan Foote" <jtfoote at ieee.org>
Sent: Wednesday, April 22, 2009 11:36 AM


> I've considered fabbing my own, but WHAT DO YOU DO WITH THE USED
> ETCHANT? Pouring toxic metal salts down the drain is ecologically
> inconsiderate and likely illegal. The price of copper being what it
> is, I'm sure the fab houses have some kind of electrolytic recovery,
> but that's more than I feel like dealing with in the sink. I'll stick
> to the fab houses, who also do a great job drilling all those teeny
> holes in the right place.