Homebrew PCBs

> -----Message d'origine-----
> De : Homebrew_PCBs@yahoogroups.com 
> [mailto:Homebrew_PCBs@yahoogroups.com] De la part de Andrew
> Envoyé : mai 17 2006 18:24
> À : Homebrew_PCBs@yahoogroups.com
> Objet : [Homebrew_PCBs] Re: RE : unsuccesful attempts to 
> transfer on board :(
> 
> The funny thing about this statement is that
> transperancies work very well for Toner-
> Transfer but are quite hopeless for UV-Photo
> etching with most laser printers. In UV photo
> etching people generaly use vellum if they
> can't make a real photo-tool.  The vellum does
> not leave pin holes for the UV light to get
> through as badly.

Before doing toner-transfer with Pulsar paper, I started by using
transparencies with photo-sensitive PCBs with excellent results.  I could
make 10mil traces quite easily.

Robert
:)