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Have a question about CadSoft EAGLE?  Ask our Expert, Richard! (Archive)

nlarson

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Richard Hammerl

Richard is an engineer with 16 years experience in EAGLE customer support and is waiting for your questions.

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  • Richard,

     

    I recently sent a completed set of gerber files generated from Eagle to a PCB manufacturer. They replied saying that "no stackup information was provided in the gerber files." They needed further information on the thickness/material of the board and each of its layers. I have all of the layer specified in the DRC options for my board. My question is this: Does Eagle automatically generate the "stackup" information or do I need to manually create a text file and include this information for my PCB manufacturer?

  • in reply to e14 Contributor

    Hi Joey,

     

    the layer setup is part of the Design Rules, which are stored in the board file. This means hat the board manufacturer can look up the setup if he would load the file in the layout editor and look into the Design Rules.

    There he can find the values for thickness and the via lenghts.
    But it is always good to tell the board house such details like setup and via lengths in a separate note. So I'ld recommend to tell them all details separately.

     

    Regards,

    Richard

  • in reply to Richard_H

    Hi Richard,

     

    I am affraid the Design Rules are NOT stored in brd file, at least my 6.1

    doesn't store it, which in my opinion is another from long list of bugs with

    potentially serious consequences...

     

     

    Dusan

  • in reply to Dusan_R

    Hi Dusan,

     

    I will keep you message in mind and look into the Design Rules subject we discussed here as soon as I have a bit of time for this. Seems to be a bit odd....

     

    Regards,

    Richard

  • in reply to Richard_H

    Yes, I might have done it. But everytime I reopen Eagle, the design rules

    are declared default, even though they are set correctly. Also in the XML

    data there is the header and description of the defaul rules instead of the

    rules I have in used indeed. Only after I load the rules from the file I

    have saved it looks OK - but only before the session is closed. A bit

    confusing...

  • in reply to Dusan_R

    Hi Dusan,

     

    you never bothered me..... I am glad about each message that can help in improving EAGLE.
    I did some testing as well and could not find a problem with the Design Rules. So maybe you unintentionally changed the rules or loaded another dru file.

     

    Regards,
    Richard

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