Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Alexandre Souza"
<alexandre-listas@e...> wrote:
...
>     - The last and MORE IMPORTANT STEP is to take a toothbrush,
brush it in
> soap, and after brush the ENTIRE board to take out ALL the paper
residues.
> If you miss this step, you'll have problems corroding some fine tracks.
> 

congrats on a good transfer - there is something really satisfying
about creating something like that.

I'd be very carefull with that toothbrush.  While it will get the
paper residue, it can also take off toner.   I was getting gaps in
some of my thinner traces until I noticed microscratches from the
toothbrush which was letting in the etchant.  I stopped using the
brush after that.  It decreased pinholing as well.

Phil