Homebrew PCBs

On Fri, 23 Dec 2005 21:43:04 +0100, adicont2 <adicont2@...> wrote:

>
> Sorry, I'm affraid I dont understand... A "wedge shape"...
>
>
>
> Adrian


The discussion back then was the lower edge of the board etches faster -  
why?
probably because the bubbles hit the lower edge, but then drift away from  
the board as they rise.
If one would put a wedge "guide" there, combined with largish bubbles,  
that would press them against the pcb all the way.

ST