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Plane creation in Orcad Layout V16.5

alanf

I have a very odd shaped PCB outline and wish to make planes for it. Somewhere in my background I remember the ability to create a shape the same shape of the outline using the menus and being able to reduce the shape to be 50mil smallerthan the outline.

Does anyone remember this ability in Allegro.  I was using Allegro until 2 yrs ago but now use Orcad Layout.

The same with the routing keepin

Parents

  • I'm obviously not working with Allegro/Orcad PCB (I think Layout is stone dead?) often enough.

    But right now I'm trying to change an old board to include some clearing between etch and board outline. (Highly related to this pos, so I hope my intrusion will be forgiven ;-). It should be easy - but I can't figure it out: The fills are highly modifie but originates from a Z-copy of the curved board outline. If I "Z-copy shrink" it the internal borders are messed up. I thought adding a route keep in outline would help - but I (of course?) just get DRC errors. Next try was to add a shape in the "route keepout. I can Z-copy the outlines - but I can't combine them to make the needed hollow outline. This is probably not the smart way to do it - but it still annoys me that I can't create a complex hollow shape in Allegro. Is it possible at all?

    Not sure what I'm missing. I think I'm missing a good search term - because I'm sure there's a smart way to create board edge clearing in Allegro. If someone has a quick hint it will be appreciated!

    Cheers,

     Anders  (on a Orcad PCB v16.2)

    PS: I think my best bet now is using a shrinked Z-copy of the outline in the route keepout layer and then changing the trace width of this... 

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  • I'm obviously not working with Allegro/Orcad PCB (I think Layout is stone dead?) often enough.

    But right now I'm trying to change an old board to include some clearing between etch and board outline. (Highly related to this pos, so I hope my intrusion will be forgiven ;-). It should be easy - but I can't figure it out: The fills are highly modifie but originates from a Z-copy of the curved board outline. If I "Z-copy shrink" it the internal borders are messed up. I thought adding a route keep in outline would help - but I (of course?) just get DRC errors. Next try was to add a shape in the "route keepout. I can Z-copy the outlines - but I can't combine them to make the needed hollow outline. This is probably not the smart way to do it - but it still annoys me that I can't create a complex hollow shape in Allegro. Is it possible at all?

    Not sure what I'm missing. I think I'm missing a good search term - because I'm sure there's a smart way to create board edge clearing in Allegro. If someone has a quick hint it will be appreciated!

    Cheers,

     Anders  (on a Orcad PCB v16.2)

    PS: I think my best bet now is using a shrinked Z-copy of the outline in the route keepout layer and then changing the trace width of this... 

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