gnupic: Re: [gnupic] pcb
Subject:
Re: [gnupic] pcb
From:
"Pete Harlow" ####@####.####
Date:
19 Sep 2006 22:08:38 +0100
Message-Id: <1ce131ee0609191408w3fef6d37x5bd28627a9a7472@mail.gmail.com>
Here is a bit more information on the ins and outs of PCBs...
http://en.wikipedia.org/wiki/Printed_circuit_board
-P.
On 19/09/06, Robert Pearce ####@####.#### wrote:
>
> On Tue, 19 Sep 2006, ####@####.#### wrote :
> >I've wondered how people does the white layer--sorry but don't know
> >what's the word for it in english--could you please tell us?
> >
> The silkscreen is generated in exactly the same way as the copper
> layers, from the CAD user's perspective. The component libraries contain
> the required silkscreen shapes for packages, and the part numbers are
> included. Sometimes the default part number position is unfortunate so
> you do something to move it (on Eagle it's called "smash", which unlocks
> the annotations from the component and allows you to move them
> independently).
>
> As to the printing of silkscreen, if you get your PCB produced
> professionally from your Gerber plots, it's just a case of supplying the
> extra files. If you're etching the board yourself you don't bother with
> a silkscreen. But then, you don't bother with solder mask layers either,
> or Gerber files, or drill data, or....
> --
> Rob Pearce http://www.bdt-home.demon.co.uk
>
> The contents of this | Windows NT crashed.
> message are purely | I am the Blue Screen of Death.
> my opinion. Don't | No one hears your screams.
> believe a word. |
>
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--
Pete Harlow
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