Homebrew PCBs

> A cheap old epson stylus 400 colour will do 8mil tracks/spacing smoothly 
> in
> 600x720dpi mode. It's the printer technology and ink/transparency 
> combination
> that makes the most difference.
>
>

You don't understand the problem.
Even a 300dpi unit can do traces of 7 mil but _not_ metric spaced smd 
parts.
the printer works in inches and if you print metric spacing you get a 
variations in
line width and space.

ST