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Mail Archives: geda-user/2019/03/08/17:06:36

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From: karl AT aspodata DOT se
To: geda-user AT delorie DOT com
Subject: [geda-user] route style, line distance
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Message-Id: <20190308220352.B506685E7F7D@turkos.aspodata.se>
Date: Fri, 8 Mar 2019 23:03:52 +0100 (CET)
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Reply-To: geda-user AT delorie DOT com

I'm trying to get signal lines from a LQFP100_14.fp footprint out 
to everywhere else (small.sch / small.pcb [1] if you are curios).

So I'm looking at grid sizes and route styles.
[2] tells me that for 35um, a line width and isolation of 125um is
the minimum, so I think thickness 0.15, keepaway 0.15 would be find.

Drawing a line and surrund it with copper (F5 rectangle) i get the req. 
0.15mm keepaway. How do I make two parallell lines to have the same 
separation, if I draw a line and then another one as close as possible
with "Auto enforce DRC clearance" the separation will be what is set
in the DRC line in the file. Isn't there a way to draw lines so that
the keepaway (for that route style) is respected ?

Regards,
/Karl Hammar

[1] http://aspodata.se/git/openhw/boards_arm_aspo/stm32f105_can/
[2] https://www.cogra.se/design/

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