Homebrew PCBs

>
> I found in the few TT  boards I have ever made, was that the dusting
> all over the board were undercut by the acid so fast that they never
> posed a problem.
>
Seems so..

> Also, that in melting the toner, it covered better in some areas.
>
> I too had a problem with getting really dark black areas in large
> sections.  I am not sure if it has to do with the laser model being
> old, or if it has more to do with the electrostatic exhanges in an
> area of the toner.
>
> for large areas, I always went back with a marker and filled in the
> holes.
>
> Dave

this is always a problem with laser printers/copiers.
But i think the older the printer and the thicker the paper the worse it 
gets.

I can't make any traces 20mil, i get long areas where it actually results
in two parallel lines, with the middle beeing a single long "pinhole".

It is sometimes better, sometimes worse.

This printer always had problems with toner coverage, this is also the 
reason why
i have given up on photo process, i can't get a useable transparency.

ST