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Mail Archives: geda-user/2012/02/28/23:33:55

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Message-ID: <4F4DA74F.4040209@innocent.com>
Date: Tue, 28 Feb 2012 23:19:27 -0500
From: Gus Fantanas <fantanas AT innocent DOT com>
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To: geda-user AT delorie DOT com
Subject: [geda-user] Vias smaller than 21mil; making REFDES disappear in PCB
References: <CALSZ9goA_gU70Cs8xDKtuYKVHiaJN4DUwr=BqZ91GPmWD7dy6g AT mail DOT gmail DOT com> <4F4D2B16 DOT 9000802 AT gmail DOT com>
In-Reply-To: <4F4D2B16.9000802@gmail.com>
Reply-To: geda-user AT delorie DOT com

Hello All,

I am running the gEDA version that came with Ubuntu 11.10.   I have two 
questions:

(1) Is there a way to make vias less than 21mil across?  Currently, I 
have declared a 10mil drill hole, but even if I make the drill hole 
smaller, say 5mil (this is just hypothetical; I am not going to order a 
PCB with 5 mil via holes), gEDA still refuses to let me decrease the 
copper diameter to below 21mil (5½´´ thickness of the annulus).  I would 
like a copper diameter (via size) of 18mil.  I cannot figure out why PCB 
refuses to let me go below 21mil.  Commands like 
'Changesize(selectedvias,18,mil)' do not work; they only work when I 
want to increase the via size.

(2) I am laying out a board where the layout is very tight.  There is no 
room for REFDESes.  However, I will need the REFDESes in the printout of 
the layout because the board will assembled by hand.  I would like a way 
to turn the REFDESes on the PBC  selectively on and off, so when I print 
the gerbers to send to fab house, the REFDESes which take too much space 
will not show up, but I can still turn on the REFDESes at a later time, 
when I print the layout at some magnification. The silkscreen contains 
some items I would like printed on the actual PCB, so it is not an issue 
of turning the silkscreen on and off.  I manipulated the PCB with vim, 
turning all REFDES sizes to zero.  Unfortunately, PCB printed little 
blobs on the silkscreen then.  Any ideas?

Thank you in advance for your time.

cf

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