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Setting trace widths, etc. for Autorouter

Former Member

Before letting autorouter run is there a way to set the power traces (e.g., 12V, GND) to a wider width than the signal traces? Also, is there also a setting that allows only 45 degree bends for traces?

Thanks,

Jeff

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  • 0

    Jeff,

     

    from experience I recommend not to leave the power traces (incl. GND) to the Autorouter. You better route them manually as the autorouter is definitetly not as intelligent as a human. It might be helpful if you check the option 'auto set route width and drill' in options/set/misc menu.

     

    Cheers,

     

    Mario

  • 0 in reply to Former Member

    Agree, manual is ideal for power traces.

    One thing I've noticed with the class method - although it works very well, it does produce a warning at the ends of traces if the trace width would need to be smaller to reach a small device pin for example.

    This is a common thing, because many SMD parts are (say) 0.5mm spaced pins, and yet I would want certain tracks to be (say) 1mm in width for the most part, except as it approaches the SMD component.

    Maybe there should be an option in EAGLE that allows the class to be overridden for a certain length of track where the track is connecting to an SMD.

    This would mean the track is thinner close to the SMD, but usually this is not an issue if the length is short.

    It would be a nice feature enhancement (I'm still on an old EAGLE release however, so my info may be old).

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  • 0 in reply to Former Member

    Agree, manual is ideal for power traces.

    One thing I've noticed with the class method - although it works very well, it does produce a warning at the ends of traces if the trace width would need to be smaller to reach a small device pin for example.

    This is a common thing, because many SMD parts are (say) 0.5mm spaced pins, and yet I would want certain tracks to be (say) 1mm in width for the most part, except as it approaches the SMD component.

    Maybe there should be an option in EAGLE that allows the class to be overridden for a certain length of track where the track is connecting to an SMD.

    This would mean the track is thinner close to the SMD, but usually this is not an issue if the length is short.

    It would be a nice feature enhancement (I'm still on an old EAGLE release however, so my info may be old).

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