Re: Negative Etch (Was Re: gEDA-user: PCB manual routing)

[John Griessen <john_g@xxxxxxxxxx>]

DJ Delorie wrote:

> It reads to me "expose, develop, strip".  Isn't that always the way
> with photoresist?

Some used for silkscreen printing can be just expose, strip with warm water wash 
immediately.

I used some B&W film to make negs from pos a few weeks ago and it was not very 
high contrast.   The results captured the artwork OK, but didn't make the 
greatest phototool for exposing resist.

Know a source for good high contrast line art film you can use with a red safelight?

John G


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