X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=mime-version:in-reply-to:references:from:date:message-id:subject:to;
        bh=n5p8DpsZvsOyeQ8vO61FEtc/s8JzjTFtCglOHnly8ys=;
        b=Gh3IJ+QEkHnN1I1epm9SG1Q6T/c8oHyN6RtvyVTFwRF74J52KtChCkNDkaEn/65cmR
         3sWZOZMykt3liYhj91jMJo1BWbWeXY3e9hU0qL3FUvfDzpnoaf8Va1MQ1U4Bjbw2Hvxl
         T+9cceXodYUeC/wNXFALlDnJhX9Qfboo/fYhivJ+sSZ+IcSGRRbNlKwGb1fWonyc2TnF
         IQnIWM7xSC0HDchNYMJRgr9Hl5XCXuMfhuvkQYPiKoRsVE9A66qCGogM6eagB4ElBaQh
         Sp80P9JCAbycIq2UzQtTkOJ4U7H7SR5HCopFUs3p83G/K4QkxGoYXJ/tnGQlRFwbGL3j
         6cwg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:mime-version:in-reply-to:references:from:date
         :message-id:subject:to;
        bh=n5p8DpsZvsOyeQ8vO61FEtc/s8JzjTFtCglOHnly8ys=;
        b=kkOEMO9BxPiPlrKjgsXvaBlEnhkRfzfpeuw4Fl7Qj4XTVvKappOgPrLmESSBk0bHkK
         8iIpiSMDcPzglMNP6WezgpKmw4W95Mmzy6JxI6sVdnO5EIa9vpF1xZG78lwet3bBTAul
         fJUeD1zfiHmLlaHmnAGVTli3Sm6fSRVJAG23wjMVuC626X117qkHMvrmFF5R1d8yp8ZR
         CtnqU3Kn/kIeMGMP6Cc7TkSZTd0d9fyJqJWU5za+UDmK8GDDk4f14prSchb7y7Xwem2B
         /hOQO7JJ80sSaoGM0il12kwWz1VSfCaynqkuaXWWTn+rxpl74gjtPehp/Dwa4Fax9XDH
         BKYw==
X-Gm-Message-State: AMke39mEiVeJRT1wDTUBkf6Q3d/3MGesTrxMsawBSJjEawQvxLLlkEwWrFnZQjMpPFPq247ycRL2BA6zQosMJQ==
X-Received: by 10.99.50.70 with SMTP id y67mr44180077pgy.109.1489519949217;
 Tue, 14 Mar 2017 12:32:29 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <alpine.DEB.2.00.1703142003170.27212@igor2priv>
References: <alpine DOT DEB DOT 2 DOT 00 DOT 1703130747230 DOT 27212 AT igor2priv>
 <20170314194424 DOT a2f383cf15dcf3ae8e204261 AT gmail DOT com> <alpine DOT DEB DOT 2 DOT 00 DOT 1703142003170 DOT 27212 AT igor2priv>
From: "Chad Parker (parker DOT charles AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Tue, 14 Mar 2017 15:31:34 -0400
Message-ID: <CAJZxidB3-Xy=6yV2+18NLN+nL5=yJfRjtCvuz3za5R=TFv0uQA@mail.gmail.com>
Subject: Re: [geda-user] [pcb-rnd] tEDAx footprint load support
To: geda-user AT delorie DOT com
Content-Type: multipart/alternative; boundary=001a11487fce7584bb054ab5e36b
Reply-To: geda-user AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: geda-user AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

--001a11487fce7584bb054ab5e36b
Content-Type: text/plain; charset=UTF-8

>
>  - Holes without plating is common.
>>
>
> Common, but not essential. The same footprint could work fine with plated
> holes.
>

Not always. In much of my work I'm not allowed to use pth for any kind of
mounting hole, which would include holes for screwing into things like heat
sinks and packages that might be included in a footprint.

Question (to all PCB engineers): how often do you rely on the clearance
> value set in a footprint?
>

My clearances are typically defined at the board level by my netlist and my
geometry. I can't think of a time I've ever defined a clearance in a
footprint that wasn't highly specialized.

--Chad

--001a11487fce7584bb054ab5e36b
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><span class=3D""><blockquote class=3D"gmail_quot=
e" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">=
=C2=A0- Holes without plating is common.<br>
</blockquote>
<br></span>
Common, but not essential. The same footprint could work fine with plated h=
oles. <br></blockquote><div>=C2=A0<br></div><div>Not always. In much of my =
work I&#39;m not allowed to use pth for any kind of mounting hole, which wo=
uld include holes for screwing into things like heat sinks and packages tha=
t might be included in a footprint.<br></div><div><br></div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pa=
dding-left:1ex">
Question (to all PCB engineers): how often do you rely on the clearance val=
ue set in a footprint?<br></blockquote><div><br></div><div>My clearances ar=
e typically defined at the board level by my netlist and my geometry. I can=
&#39;t think of a time I&#39;ve ever defined a clearance in a footprint tha=
t wasn&#39;t highly specialized. <br><br></div><div>--Chad<br></div></div><=
/div></div>

--001a11487fce7584bb054ab5e36b--