Homebrew PCBs

DJ Delorie wrote:
> 
> 
> 
> Today I remembered to heat my etchant. I just ran hot tap water into
> a large container, and floated the FeCl container in it.
> 

I put the FeCl3 etchant directly in the microwave oven. Much more 
efficient in both time and energy. Strangely, the liquid does not seem 
to be conductive enough to cause excessive localized heating on the 
plasticware.

Adam