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=Fg+6BGKVJ+7jQRu2rbFeaUSnytGhHf/WAwNVyaylqGA=; b=nHagEeBYnmOvj35DiX3LrT1QBiWpFIpXBU2qN7603+LCIZh1yuLO3/xbQUEfCiokmx A3O3BvAqTr7vDPN3H8T9A43DqLBgmDhc2vVKt5fQiAnL2PVwxvjscijeSmJbDg7l6alj 5OzT0HQFtX33ydMXdar03l2dR9dYWRhyLNskli5tVeoJbKuD/Tif3vmNKh/HrM1wfnv8 ULiSwupnlCxk9wSduLfLfl6PDyFsyA/kycDyn8g7CgXhOfd4c/ST6ZnkK0qobrT5bEyF CZcX/Hd8vdVz9Ut4QgbAW3hbQ0lFFvIUxZjDjDS2G/bLWIZFObd9mveWgmUZ030Djcd8 NK5w== MIME-Version: 1.0 X-Received: by 10.112.164.35 with SMTP id yn3mr1789735lbb.91.1436930941291; Tue, 14 Jul 2015 20:29:01 -0700 (PDT) In-Reply-To: References: <76520AC3-3E8D-4F80-A912-AB076DD8D0C6 AT icloud DOT com> <1670171546 DOT 913210 DOT 1436776811789 DOT JavaMail DOT yahoo AT mail DOT yahoo DOT com> <79456AAA-24A9-4300-900D-005ABBCFCBDA AT icloud DOT com> <60F3B5BC-EC05-41FE-BAF7-B2A14B4392EC AT icloud DOT com> Date: Wed, 15 Jul 2015 03:29:01 +0000 Message-ID: Subject: Re: [geda-user] PCB interface (ECAD vs. MCAD) From: "Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com]" To: geda-user AT delorie DOT com Content-Type: text/plain; charset=UTF-8 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 On Tue, Jul 14, 2015 at 1:03 PM, Vaclav Peroutka (vaclavpe AT seznam DOT cz) [via geda-user AT delorie DOT com] wrote: > > However it nearly always has some kind of panel mounting. When I start a > layout, I nearly always want to start with the mechanical components, to > say: distribute these switches/LEDS between here and here, on 20mm centres. > This is trivial with 2D MCAD, but cumbersome with PCB. > > > Good idea. All profesional flows start with "mechanical" design of PCB - > mounting holes, connectors, LEDs, switches etc. These footprints must not be > touched later. Then placement and layout of all non-mechanical components I like this a lot. Could we use a library that already exists to import dxf or something? Most of my projects for work do start this way. I do have some where the prototyping and etc are more important than a case. > Another question - is there any process of pre-placement in PCB ? Somehow to > extract positions from SCH file and load it to PCB - footprints will be > moved to similar places like in schematic. I vaguely recall someone talking about it. I don't think it ever got to a fit to ship state obviously. -- Home http://evanfoss.googlepages.com/ Work http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/