Wouldn't just a few drops of black make the yellow very visible?
Robert
:)
> -----Message d'origine-----
> De : Homebrew_PCBs@yahoogroups.com
> [mailto:Homebrew_PCBs@yahoogroups.com] De la part de warrenbrayshaw
> Envoyé : mai 2 2006 18:20
> À : Homebrew_PCBs@yahoogroups.com
> Objet : [Homebrew_PCBs] Re: Direct inkjet resist on 1.6mm FR4 results
>
>
...
>
> You can only use yellow for each cartridge which results most etch
> resistant ink on your PCB but yellow is transparent and
> difficult to do
> visual inspection because of that I mixed the inks and used as a cyan
> cartridge.
>