Void in Place Bound Layer

Can you not use the new STEP model functions inside Allegro? If not then draw a shape similar to below, make the grid small and then the line that goes to the edge won't effect too much.

I'm using 17.2 so I have access to the STEP model mapping, but unfortunately I don't have access to a company-approved application for creating the STEP model, and the vendor doesn't have a model either.  I guess I'll try your work-around, but I need to put 6 holes in the plate - perhaps I can create a template "hole" shape and copy it into an array of solid shapes.  Not sure why Allegro is preventing voids.  :-(

You could define two shape, add an arc on the edge and place them next to each other.   You can even have them overlap if the arcs are a little tricky to add to the edge.

If you don't want to play with adding arcs to the edge you could define the shapes on Etch/Top and use Void Circle to create the edge arcs than just Z-Copy the shapes to Place_Bound_Top.

It is a workaround but at least it gets you what you want. :-)  Not sure why there is a limitation with having voids in the Place Bound shape.

Hope this helps,
Mike Catrambone

I tried creation on the copper layer and then Z-copy to Place Bound, but it threw away the void.  Not sure if I'm doing it incorrectly.

Abutting shapes with arcs worked, so I guess that's the winner.  I think I'll submit a feature change request for the lack of voiding on Place Bound.

For the 3d you can try FreeCAD (it's free) to make models yourself or look at 3dcontentcentral.com, they have many free STEP models. I raised an enhancement request for voids in place bound shapes. CCR number 1453867 but its currently set to inactive.