Homebrew PCBs

If the short etch does show signs of residue, can the board be rinsed 
and additional developing attempted? Or is it all over at that point?

Regards, Bob

--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell <a_seychell@y...> 
wrote:
<snip>
> 
> Rinse then, etch for 20 seconds. If copper does not 
> turn matte pink in some areas then there this is signs of 
photoresist residue.
>