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Mail Archives: geda-help/2015/08/30/00:50:22

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Sat, 29 Aug 2015 21:50:00 -0700 (PDT)
Date: Sun, 30 Aug 2015 00:50:00 -0400
Message-ID: <CAPmQ2J8F57KTBy+PJr9ZaLnFNJauYzQK-wE6BPNQE7aTpzPY9g@mail.gmail.com>
Subject: [geda-help] General PCB Layout Question on Two Layer Board
From: "Stan Katz (stan DOT katz DOT hk AT gmail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com>
To: geda-help AT delorie DOT com
Reply-To: geda-help AT delorie DOT com

--bcaec51d205aaee79b051e800c03
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First, I would like to mention that although I'm just a hobbyist, I lurk on
geda-user. I had been hoping and watching to see if a new PCB was going to
be released. I don't intend to understand the subtleties of the discussions
on geda-user, but I did note igor2's pcb-rnd fork was available. I didn't
think I would bother with it, since it wasn't official, but a problem
cropped up, that made me change my mind. I had laid out a board in 1.9.1
which I compiled from source. When I tried to export the board to
Postscript, 1.9.1, PCB segfaulted. I switched to my distribution's PCB
 (20140316) and that version also segfaulted. I decided that I should try
pcb-rnd. Lucky for me, pcb-rnd didn't segfault. The trace colors were also
nicely saturated, and easier on my old eyes. Give Igor2 one thumbs up from
a rank amateur hobbyist....for what that's worth.

Now, to get down to my issue, I'm hoping that you can guide me towards a
book on producing excellent two layer boards for precision analog projects.
You pros probably reference books from Montrose, and Ott for your work.
That's great for 4 layers and up. These sources dismiss 2 layer board from
the get go. The only advise directed towards 2 layer I could find was in a
TI journal. That advise, was....use one layer devoted entirely to ground,
and then spend the rest of your life soldering jumpers on the component
layer. NO THANK YOU! Talented engineers back in the '60s and '70s were able
to produce quality two sided analog boards without jumpers. There must have
been a book, or two ( undoubtedly out of print now ) that guided designers
back then.

Can you help me out here?

Stan

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<div dir=3D"ltr">First, I would like to mention that although I&#39;m just =
a hobbyist, I lurk on geda-user. I had been hoping and watching to see if a=
 new PCB was going to be released. I don&#39;t intend to understand the sub=
tleties of the discussions on geda-user, but I did note igor2&#39;s pcb-rnd=
 fork was available. I didn&#39;t think I would bother with it, since it wa=
sn&#39;t official, but a problem cropped up, that made me change my mind. I=
 had laid out a board in 1.9.1 which I compiled from source. When I tried t=
o export the board to Postscript, 1.9.1, PCB segfaulted. I switched to my d=
istribution&#39;s PCB =C2=A0(20140316) and that version also segfaulted. I =
decided that I should try pcb-rnd. Lucky for me, pcb-rnd didn&#39;t segfaul=
t. The trace colors were also nicely saturated, and easier on my old eyes. =
Give Igor2 one thumbs up from a rank amateur hobbyist....for what that&#39;=
s worth.=C2=A0<div><br></div><div>Now, to get down to my issue, I&#39;m hop=
ing that you can guide me towards a book on producing excellent two layer b=
oards for precision analog projects. You pros probably reference books from=
 Montrose, and Ott for your work. That&#39;s great for 4 layers and up. The=
se sources dismiss 2 layer board from the get go. The only advise directed =
towards 2 layer I could find was in a TI journal. That advise, was....use o=
ne layer devoted entirely to ground, and then spend the rest of your life s=
oldering jumpers on the component layer. NO THANK YOU! Talented engineers b=
ack in the &#39;60s and &#39;70s were able to produce quality two sided ana=
log boards without jumpers. There must have been a book, or two ( undoubted=
ly out of print now ) that guided designers back then.</div><div><br></div>=
<div>Can you help me out here?</div><div><br></div><div>Stan</div></div>

--bcaec51d205aaee79b051e800c03--

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