Homebrew PCBs

"awakephd" <a_wake@...> writes:
> Okay, it sounds like I'm back to plan A -- saving the etchant and
> making a bubbler tank down the road. A followup question -- now that
> you have the CuCl, how long does it take to etch a board with it?

Usually 3-6 minutes depending on how long I let it warm up first, and
if I manually swish it around in the etchant or let the bubbler do the
work.

> BTW, is it CuCl or CuCl2?? I think I've seen it both ways on this forum??

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