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Ratsnest minimization length

PcbAG

Hi

I am a new user of orcadpcb and would like to know if it is possible to minimize the length of the ratsnest during the placement of a component and not after it is placed.

Thanks

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  • ScottCad

    The ratsnest in Allegro is not dynamic. The older Layout product had a dynamic ratsnest, cadence are a bit behind in this respect.

    There are settings that can help a little.

    Click Setup > Design Parameters on the tool bar. In the dialog box set the ratsnest geometry to Straight. You can also set the ratsnest points to either closest endpoint or pin to pin. Closest enpoint works pretty good.

    Other things you can do to make life easier is assign colors to specific nets like ground and power, Disable a ratsnest from showing, Blank all ratsnests so when you move a part only those nets show up.

    Hope that helps some

    Scott

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  • ScottCad

    The ratsnest in Allegro is not dynamic. The older Layout product had a dynamic ratsnest, cadence are a bit behind in this respect.

    There are settings that can help a little.

    Click Setup > Design Parameters on the tool bar. In the dialog box set the ratsnest geometry to Straight. You can also set the ratsnest points to either closest endpoint or pin to pin. Closest enpoint works pretty good.

    Other things you can do to make life easier is assign colors to specific nets like ground and power, Disable a ratsnest from showing, Blank all ratsnests so when you move a part only those nets show up.

    Hope that helps some

    Scott

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