Homebrew PCBs

"Todd F. Carney / K7TFC" <k7tfc@...> writes:
> Thanks. What are your typical etching times and temperature for, say, 1oz
> copper?

I don't maintain the solution as well as I should.  Sometimes it's as
fast as 4 minutes, sometimes as long as 20.  Depends on temperature, and
I'm probably off on the chemistry a little.

See http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/