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Date: Mon, 17 Nov 2014 20:34:44 +0000 (UTC)
From: Cirilo Bernardo <cirilo_bernardo AT yahoo DOT com>
To: "geda-user AT delorie DOT com" <geda-user AT delorie DOT com>
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References: <546A29CF DOT 8010909 AT xs4all DOT nl>
Subject: Re: [geda-user] PCB and 3D Views
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----- Original Message -----

> From: Bert Timmerman <bert DOT timmerman AT xs4all DOT nl>
> To: geda-user AT delorie DOT com
> Cc: 
> Sent: Tuesday, November 18, 2014 4:01 AM
> Subject: Re: [geda-user] PCB and 3D Views
> 
> Levente wrote:
>>  How PCB (would) store 3D data?
>> 
>>  Levente
>> 
>>  On Mon, Nov 17, 2014 at 9:38 AM, Ed Simmons <ed AT estechnical DOT co DOT uk 
>>  <mailto:ed AT estechnical DOT co DOT uk>> wrote:
>> 
>>      On 16/11/14 18:10, Milan Prochac wrote:
>>      > There is no future for 3D in PCB next years...
>>      >
>>      > Milan
>>      This is a shame... OpenSCAD or other 3d exporter would be a great
>>      asset
>>      for PCB - things might fit into housings with less effort! ;)
>> 
>>      Ed
>> 
>>      --
>>      Ed Simmons
>>     ed AT estechnical DOT co DOT uk <mailto:ed AT estechnical DOT co DOT uk>
> 
>>      www.estechnical.co.uk <http://www.estechnical.co.uk>
>> 
>> 
> Hi,
> 
> My approach is:
> 
> 
> Create 3D-models with the same "descriptive name" as the footprint has 
> 
> (only a different extension, avoid spaces here), see my library of 
> 3D-models on Github.
> 
> The (pcb) exporter generates an OpenSCAD file in which a pcb with 
> maximum X-, and Y-dimensions (and a nominal thickness 1.6 mm) is 
> defined, and where 3D-models of named parts are included (like in a C 
> program) and inserted on X-, Y-coordinates and on top/bottom side with 
> proper orientation.
> 
> So basically no 3D-modeling stuff has to be built into pcb itself 
> because OpenSCAD is to do all the rendering and visualisation.
> 
> Same line of thought can be applied to any other 3D exporter :)
> 
> Kind regards,
> 
> Bert Timmerman.
> 

Another approach is to use 'IDF' - without making changes to PCB,
it should be possible to at least export the board as an IDF file
with correct dimensions. This can even be done as a stand-alone
tool if you don't mind writing a PCB parser. KiCad has IDF code
which you can take and use so at least you don't have to rewrite
the framework; there is also a tool to convert IDF to VRML if you
want a VRML output for visualization.

- Cirilo