delorie.com/archives/browse.cgi | search |
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=20120113; | |
h=mime-version:in-reply-to:references:date:message-id:subject:from:to | |
:content-type; | |
bh=MDGm1dCzBS8XNC1KaS8D/I+O2OtbnSr7Z3l+I0ss2Mk=; | |
b=ekq+L+zLKnukPKnlxDdKR9veKCZ3/A0QjLyj/F71usG433HGxat1+6OVNWv56YrRc2 | |
d0qLcuI53m8j2rsWnJE6N9Xw0USFnfZ0zdp80sVWRNCow0vExcH26uzuH2X26w5qauyl | |
VZjGR+36Hz0WyzbpDL3mLVPjYsroJcwaiB+/MFq06SB5OnqG99c2CdlBu0Z3KDh6b+jp | |
Gb8hL8qzH8c1KNs/2cgwEj4UhVuIEIZbNq/dPh/lmUKbLYFEZwtavFmlQ98ZMsKgs9Uv | |
ui7GjuXKUt0UuqFrwtJ1hEkWWmG+j5d7FTYNe4D90WAGZAEbJTDBX6YH80PfpZGikMMx | |
Pi/g== | |
MIME-Version: | 1.0 |
X-Received: | by 10.180.105.165 with SMTP id gn5mr24955684wib.20.1438019227937; |
Mon, 27 Jul 2015 10:47:07 -0700 (PDT) | |
In-Reply-To: | <CA+KzSgJy7t=fqNAA1aBH0--6ThqzgzH_09s8MH=8p=_vhCciPg@mail.gmail.com> |
References: | <55AFE14E DOT 5040704 AT buffalo DOT edu> |
<CA+KzSgJy7t=fqNAA1aBH0--6ThqzgzH_09s8MH=8p=_vhCciPg AT mail DOT gmail DOT com> | |
Date: | Mon, 27 Jul 2015 09:47:07 -0800 |
Message-ID: | <CAC4O8c9TrBE-Ysp4ifA1Tf+vvhTj2qkuz8U7UawiyO095ax3kQ@mail.gmail.com> |
Subject: | Re: [geda-user] Component Cut-outs in PCB |
From: | "Britton Kerin (britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
To: | geda-user AT delorie DOT com |
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 |
On Mon, Jul 27, 2015 at 5:43 AM, Mitch Davis (mjd+geda-user AT hackvana DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote: > > On Thu, Jul 23, 2015 at 4:30 AM, Stephen Besch <sbesch AT buffalo DOT edu> wrote: >> >> >> First off, every board shop that I deal with want cut-outs in a separate >> gerber file. > > > How odd. > > I ask my customers to put cut-outs either in the outline file (.gm1 or .gko) > or do it as a non-plated slot, along with non-plated holes (-NPTH.txt). I > wrote about it here: > > http://hackvana.blogspot.com.au/2014/02/slots.html > > Gerber/Excellon are formats which exist to convey info from CAD to CAM. In > the words of Karel Tavernier (who is the boss of Ucamco, the custodian of > Gerber), "The Extended [Gerber] format enables clear, unambiguous > communication between designer and CAM engineer". > > This is a really interesting article, especially the first page: > > > http://www.ucamco.com/files/downloads/file/22/Kick_Starting_a_Revolution_IPC-2581_Meets_Gerber.pdf > > IMO it's a mistake for us to second-guess how a board shop actually makes > the boards. It serves as a specificationm and should just describe what we > want. I really can't understand that a company would require us to do their > CAM job work for them. Sigh. I use pcb-pool.com, for (admittedly not too tiny) cutouts I've just made silk lines and write "Cut Out" in text on the area to go away and they've been fine with it. Britton
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |