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Mail Archives: geda-user/2012/05/30/10:02:37

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Date: Wed, 30 May 2012 16:02:22 +0200
From: Gabriel Paubert <paubert AT iram DOT es>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] extra mask, plating, and silk colours in pcb
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On Tue, May 29, 2012 at 01:30:12PM -0500, Benjamin Bergman wrote:
> On Tue, May 29, 2012 at 12:24 PM, Gabriel Paubert <paubert AT iram DOT es> wrote:
> 
> > Actually some manufacturers also offer silver, which is initially very
> > bright
> > but changes with time.
> >
> 
> Ok, so perhaps I should change the gold checkbox to be a selector with
> options of tin (default), gold, copper, and silver. Is this something I
> should do? If so, could you provide a sample image so that I can try and
> match the silver plating?

Sorry, no, I've never ordered a silver plated board. This said, I've seen
and even bought microwave cavity filters with silver plating but they are 
in the other lab right now (50km).

Metallic colours are impossible to reproduce exactly, but the RGB
colour (192,192,192) or 75% white is called silver. This might be
used as a starting point, but my impression is that genuine silver 
actually looks a but more "yellowish".

> 
> One of my manufacturers offers:
> > - green (default), black, blue, white, and red for the soldermask
> > - white (default), yellow and black for the silkscreen
> >
> > Obviously, using the same colour for soldermask and silkscreen is not
> > recommended.
> >
> 
> Similarly, I can change the black silk checkbox to be a selector with
> options for white (default), black, and yellow. Should I go ahead with this
> change? Is so, can a good sample image be provided?

Sorry, I don't have anything like this around here (I always oder boards with
defaut soldermask and silkscreen). But I just did some tests on my screen and 
I'd suggest to start around (224, 224, 0). But opinions on colours...

	Gabriel

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