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=n/2wri0dikwW6gaVSa4skr7qRJgvTpTaqJ/q0Y+InlU=; b=yVK+KTcU1dk1EvxpxrZCZI0BDUscQy5J51BfHpjEB/6VtOpFz94SwE1WVLqlZko2t6 mOvgm8Gq/W5Us5f1dCMVY1wOiY6A2vljy6gbvq7E+ho47FLoD9o0D5u6X5mBikJIFCM+ VDkW/80CwgxIAZUbqqJd33yCq+IbLKVPKeCfg80hhiEPghejBNWKPvHCewYR0dOLdfuA YEsHZp6/YxCPy/o3q4hClQS4Xf0AQ+tY0moAis0MQIJiQ1t4wIeIjKkoL9l+D3GP/R7d 8VA8Qq7oms0tnKbiueRu5K+olb/Q+CtkO31S4jNR//oSUlNO7zDYk4VF26sVWE0fhAIW qO6A== MIME-Version: 1.0 X-Received: by 10.107.30.209 with SMTP id e200mr2924320ioe.57.1436944601306; Wed, 15 Jul 2015 00:16:41 -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 09:16:41 +0200 Message-ID: Subject: Re: [geda-user] PCB interface (ECAD vs. MCAD) From: "Levente (leventelist AT gmail DOT com) [via geda-user AT delorie DOT com]" To: gEDA User Mailing List Content-Type: multipart/alternative; boundary=001a1140c18a85dbb7051ae4bc16 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 --001a1140c18a85dbb7051ae4bc16 Content-Type: text/plain; charset=UTF-8 I once wrote a DXF importer for PCB. Better say, a small utility, that converts a dxf to a PCB file. I can send my sources later today. Lev On Wed, Jul 15, 2015 at 5:29 AM, Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com] wrote: > 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/ > --001a1140c18a85dbb7051ae4bc16 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I once wrote a DXF importer for PCB. Better say, a sm= all utility, that converts a dxf to a PCB file. I can send my sources later= today.

Lev

On Wed, Jul 15, 2015 at 5:29 AM, Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
On = Tue, Jul 14, 2015 at 1:03 PM, Vaclav Peroutka (vaclavpe AT seznam DOT cz)
[via geda-user AT delorie DOT com] &l= t;geda-user AT delorie DOT com> wr= ote:
>
> 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 cen= tres.
> This is trivial with 2D MCAD, but cumbersome with PCB.
>
>
> Good idea. All profesional flows start with "mechanical" des= ign of PCB -
> mounting holes, connectors, LEDs, switches etc. These footprints must = not be
> touched later. Then placement and layout of all non-mechanical compone= nts

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 ? Some= how to
> extract positions from SCH file and load it to PCB - footprints will b= e
> 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/proje= ct/epl_engineering/wiki/

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