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Eagle holes/pad widening

Discussion in 'Electronic Basics' started by MarkMc, Jun 24, 2005.

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  1. MarkMc

    MarkMc Guest

    I'm a new user of eagle, and I've managed to get through designing my
    schematic to designing a PCB. I want to print via laser printer from
    eagle on to some transfers which iron on to the copper, ready for
    etching.

    I can see that I can widen tracks in eagle, which is great, but the
    copper area around holes is too small for me to solder on to. Is it
    possible to expand these circular pads without editing each and every
    library item at all?

    Regards,
    Mark
     
  2. Yes, you can change the restring (usually called annular ring) in the
    Restring tab of the DRC window. Don't ask me why its in the DRC area
    but it is.

    You will probably want to make the minimum larger but play with it.
    What you see on the screen is a close representation of what should come
    out in the output files.

    James.
     
  3. I beleive I should mention that Cadsoft has multiple great newsgroups on
    their server too. Very helpful folks there including the authors:
    news.cadsoft.de
     
  4. MarkMc

    MarkMc Guest

    Thanks James

    I kow DRC stands for design Rules Check, but does running this actually
    change your board layout then? As you can see, I've never run it
    before.

    Regards,
    Mark
     
  5. MarkMc

    MarkMc Guest

    hey thanks, I read news on google groups, but when I get home, I'll
    connect to the news server you suggest, thanks Mark
     
  6. JeffM

    JeffM Guest

    I kow DRC stands for design Rules Check,
    No.
    It flags stuff that doesn't match the specifications (e.g.,
    clearances).
    At that point, YOU can
    1) change the layout
    2) change the rules
    or
    3) cross your fingers and ignore the prompt
     
  7. Except that in EAGLE you can set all sorts of parameters in the DRC that
    actually do change how the Gerbers get generated. For example, that is where
    you go to select which vias get tented, what kind of blind/buried vias are
    allowed, what thermals look like, and other things like that. It is more
    `design rules' than `check.'

    I don't know how to widen pads that way but I can believe that you can.

    Jonathan
     
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