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Mail Archives: geda-user/2014/06/27/21:22:29

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Message-ID: <1403918513.6474.37.camel@pcjc2lap>
Subject: Re: [geda-user] pcb: Patch for arcs with different radii for x and
y on screen
From: Peter Clifton <pcjc2 AT cam DOT ac DOT uk>
To: Bdale Garbee <bdale AT gag DOT com>
Cc: geda-user AT delorie DOT com
Date: Sat, 28 Jun 2014 02:21:53 +0100
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On Fri, 2014-06-27 at 15:14 -0600, Bdale Garbee wrote:

> Real-world blind and buried vias always connect a range of layers from N
> to M.  The tricky bit in my experience in large-layer-count boards was
> always when there were multiple buried vias with the same X-Y
> coordinate.  In other words, something like layers 2-3 and 6-7 connected
> in an 8-layer board.

Hmm, turns out there is such a thing as a layer1-3 skip via.

See:

http://yamamoto-mfg.jp/original19.html

-- 
Peter Clifton <peter DOT clifton AT clifton-electronics DOT co DOT uk>

Clifton Electronics

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