Electronics Computer-Aided Design Cadstar Help - how to merge two different designs into one PCB?

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Cadstar Help - how to merge two different designs into one PCB? minus3db 07-14-06
Posted by minus3db on July 14, 2006, 2:03 pm
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Hi all, I am really hoping that a Cadstar guru out there can help me
with this problem.

I have two different schematics, each with their own unique PCB. I
want to combine the two existing PCB layouts into a single new PCB
layout.

Here's the problem: there are common component designators between both
schematics. For example, there is a diode D1 in schematic/PCB #1, and
a diode D1 also in schematic/PCB #2.
This is the case for several hundred component designators on both
boards.

I've tried to combine the two schematics together, which changes the
component designators for schematic #2. As a result, when I try to
stitch the two PCB layouts together, I'm unable to generate an ECO
update, since the component designators no longer match.

Has anybody had this problem before? I'd appreciate *any* feedback
that might help me solve this problem.

Thanks in advance,
minus3db


Posted by James Beck on July 14, 2006, 2:41 pm
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minus3db@gmail.com says...
> Hi all, I am really hoping that a Cadstar guru out there can help me
> with this problem.
>
> I have two different schematics, each with their own unique PCB. I
> want to combine the two existing PCB layouts into a single new PCB
> layout.
>
> Here's the problem: there are common component designators between both
> schematics. For example, there is a diode D1 in schematic/PCB #1, and
> a diode D1 also in schematic/PCB #2.
> This is the case for several hundred component designators on both
> boards.
>
> I've tried to combine the two schematics together, which changes the
> component designators for schematic #2. As a result, when I try to
> stitch the two PCB layouts together, I'm unable to generate an ECO
> update, since the component designators no longer match.
>
> Has anybody had this problem before? I'd appreciate *any* feedback
> that might help me solve this problem.
>
> Thanks in advance,
> minus3db
>
>
Maybe do it with a Gerber editor, just paste them both into a common
file?

Jim

Posted by Geo on July 15, 2006, 3:19 pm
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wrote:

>Maybe do it with a Gerber editor, just paste them both into a common
>file?

But surely he can't keep duplicate references on the final board - how will the
assemblers know which R1 is which?

Geo

Posted by Anton Erasmus on August 3, 2006, 4:53 pm
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wrote:

>wrote:
>
>>Maybe do it with a Gerber editor, just paste them both into a common
>>file?
>
>But surely he can't keep duplicate references on the final board - how will the
>assemblers know which R1 is which?

One would asume that it is two separate PCBs, that is just combined to
make manufacturing cheaper.

Regards
Anton Erasmus



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