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EAGLE User Chat (English) Gerber for selected area of board
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Related

Gerber for selected area of board

autodeskguest
autodeskguest over 15 years ago

Halloo All

 

Is it possible to generate a gerber file for a sub-section of a board?

 

I have a schematic containing components that are not on the main pcb,

such as LCD display, keyboard etc.  On my board layout I have simply

moved these components outside the outline of the board I wish to be

produced then run the autorouter.  Fine so far.  For the gerbers I want

to send to the manufacturer I only want the layout lying inside my

board outline with the outlying parts removed/masked.  Is this

possible? 

 

I see there are parameters like   Offset="0.0mil 0.0mil" and

Page="12000.0mil 8000.0mil" in the gerb274x.cam file so I assume these

manipulate plot area in some way.

 

Thanks

Mike E

 

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  • autodeskguest
    autodeskguest over 15 years ago

    Once again, my favorite problem...wouldn't it be nice to mark those

    parts as "off-board"?

     

    Of course, some will now chime in that they shouldn't be in your

    schematic in the first place, or that you should make new packageless

    parts from the symbols and use those...because that is the most

    convenient way to go image Or perhaps you will become so confused that your

    display is off-board that you will misinterpret the lack of warnings or

    the loss of forward/backward annotation, and gosh, it's just not worth

    it! Let's just keep struggling on the old way.

     

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  • autodeskguest
    autodeskguest over 15 years ago

    Gary Gofstein wrote:

     

    Once again, my favorite problem...wouldn't it be nice to mark those

    parts as "off-board"?

     

    Of course, some will now chime in that they shouldn't be in your

    schematic in the first place, or that you should make new packageless

    parts from the symbols and use those...because that is the most

    convenient way to go image Or perhaps you will become so confused that your

    display is off-board that you will misinterpret the lack of warnings or

    the loss of forward/backward annotation, and gosh, it's just not worth

    it! Let's just keep struggling on the old way.

     

    Mmm, packageless parts eh? 

     

    The reason they are on the schematic in the first place is that I'm also

    developing the software and being able to have a single sheet of paper

    showing what all the data lines connect to is very convenient.  I could and

    likely will eventually, write a proper specification document with tables

    and diagrams and explanations of what does what then bind that into a

    booklet.  I guess I'll have to copy and paste the off board components to a

    new set of schematics just leaving the relevant PCB related bits with lots

    of port symbols.  Then take screen shots of each set of schematics and glue

    them back together again in Gimp. image  Or Sellotape. (Other tapes are

    available). I guess I was hoping for some command line or config. file magic

    to restrict the area that was 'seen' by the gerber generation tool.

     

    Cheers Gary .

     

     

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  • autodeskguest
    autodeskguest over 15 years ago

    Yeah, it is frequently suggested that for parts not actually on the

    board, just in the schematic for documentation, that you draw only the

    symbols and place these in the schematic, then use sham wires to show

    the connections, I would guess in a special non net layer.

     

    I prefer normal parts that can be marked "off-board" or a "null package"

    ( that is blank and matches all pin configurations ) that allows one to

    place the part in the schematic normally but leaves it off the board.

    The connections to it are also ignored by the board editor.

     

    Somewhere, of course, there has to be a physical interface like a

    connector or solder hole, but the part behaves in the schematic and

    simply documents the circuit for the reasons you have outlined.

     

    This suggestion is surprisingly controversial.

     

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