Homebrew PCBs

On Fri, 17 Nov 2006 15:23:09 +0100, Christopher Hart <kc8ufv@...>  
wrote:

> Sometimes I will use one on small boards. I place the board and etchant  
> in a
> small glass/ceramic container, put some water in the cleaner, then set  
> the
> container in that. The one that I use also has a heating element, I use
> Ferric Chloride etchant (yes, the ugly brown stuff that stains  
> everything),
> and the boards are usually done in about 2 minutes. With this same  
> etchant,
> with the boards just sitting there (as I must do for larger boards) it  
> takes
> about 1/2 an hour to 45 min per double sided board. (currently all my raw
> board, except the paper thin stuff is double sided.)

Can you rule out it is only the heating which speeds it up?

ST