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Autodesk EAGLE
EAGLE User Support (English) end of trace rounding
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Related

end of trace rounding

e14candies
e14candies over 13 years ago

I have some rather thick traces (for high current), but where they connect

to the through hole pad they have a lot of rounding that makes them

overshoot the component via & get close to the adjacent pad.  Is there a

way to make the ending a bit more "blunt", I'd like the trace ending  to be

"flatter" at the via & not overshoot the pad so much.

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

 

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  • shabaz
    shabaz over 13 years ago

    Hi Norm,

     

    I've had the same issue in the past. The only way I know is to just reduce the track thickness manually (see example image below), as you

    approach very close to the pad.

    Ideally, it would be good if EAGLE would automatically reduce the thickness, and have a way not to cause a DRC error (since typically, the

    thick tracks would have a class) as long as the track is only thin to within x mil (i.e. it should be configurable) distance of the pad.

    Note: this is with v5, perhaps v6 has an enhancement in this area.

     

    You can see a type of example here (which is a partially laid out board). In this case, the fat tracks were not for current

    capability but for controlled impedance, but I need to make them narrower as they approach close to the pads, otherwise they would not fit.

    image

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  • autodeskguest
    autodeskguest over 13 years ago in reply to shabaz

    On 04/18/2013 06:33 AM, shabaz wrote:

    Hi Norm,

     

    I've had the same issue in the past. The only way I know is to just

    reduce the track thickness manually (see example image below), as you

    approach very close to the pad.

    I use polygons for power and ground traces. DRC takes care of clearances

    so you don't have to be exact.

    Paul R

     

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  • shabaz
    shabaz over 13 years ago in reply to autodeskguest

    Hi Paul,

     

    Good point, that works well for a few major traces.

    @Norm, An example is below using the polygon method.

     

    If you want to reduce a track width, select the 'route manually' icon

    on the left side icons, and then click on a yellow wire, and then left-clicking to route it until you reach close to the pad,

    then go to the top and change width, and then finally click inside the pad to end the yellow wire.

     

    As drawn:

    image

    What it looks like:

    image

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  • shabaz
    shabaz over 13 years ago in reply to autodeskguest

    Hi Paul,

     

    Good point, that works well for a few major traces.

    @Norm, An example is below using the polygon method.

     

    If you want to reduce a track width, select the 'route manually' icon

    on the left side icons, and then click on a yellow wire, and then left-clicking to route it until you reach close to the pad,

    then go to the top and change width, and then finally click inside the pad to end the yellow wire.

     

    As drawn:

    image

    What it looks like:

    image

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