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
Pleas follow the below mentioned steps
1)First you convert the outline into filled shape by using (SHAPE--COMPOSE SHAPE),on the option tab select CLASS-board geometry,SUBCLASS-outline, select all the lines
2)Now add the Route Keepin using EDIT-Zcopy,on the option tab select ROUTE KEEPIN-All,and also give the offset value
3)After drawing route keepin decompose the outline shape using(Shape-decompose),follow the same steps as mentioned in first step (or Delete your original filled shape and you are left with a unfilled shape, a closed unfilled polygon).