X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=seznam.cz; h=Received:From:To:Subject:Date:Message-Id:References:Mime-Version:X-Mailer:Content-Type; b=ZjjLm2xf26p76fdC7bykGhYUqWiTfAZ2JE6lAawGdkUmupk0x6c36Jtr3O71VOWjf 9to6DTwczfxS/U6jQr5mUevGp+r58CYynC0cHNA75rrOFJoEgmX9vdjKRkJ9+A8cOLM HNair9HyNuswCnqDmsNh9fKLl7pWhESnFPzMY58= From: "Vaclav Peroutka (vaclavpe AT seznam DOT cz) [via geda-user AT delorie DOT com]" To: Subject: Re: [geda-user] PCB interface (ECAD vs. MCAD) Date: Tue, 14 Jul 2015 15:03:37 +0200 (CEST) Message-Id: 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> Mime-Version: 1.0 (szn-mime-2.0.4) X-Mailer: szn-ebox-4.4.281 Content-Type: multipart/alternative; boundary="=_51c47f1051e6648a59cc84f7=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_=" Reply-To: geda-user AT delorie DOT com --=_51c47f1051e6648a59cc84f7=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_= Content-Type: text/plain Content-Transfer-Encoding: 7bit "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 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. "" --=_51c47f1051e6648a59cc84f7=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_= Content-Type: text/html Content-Transfer-Encoding: 7bit

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

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.

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