Homebrew PCBs

Robert Hedan wrote:
> If you aren't doing this already, try warming the ferric chloride.  I use a
> double-tank system; one small plastic container of etchant inside a larger
> plastic container of hot water.  

I microwave mine.  If it starts to cool off too much I just pop it back 
in for a few more seconds.

No, I don't do this in the kitchen microwave, I have a spare that I use 
in the workshop for various non-food heating tasks.

I'm sure this is less safe than using hot water, but it sure is easy and 
fast.  I typically only do small boards using less than 50cc of etchant 
at a time, so the potential for damage is limited.  I wouldn't try it 
this way for large quantities of etchant.

Dave K