Modify a part removing cavity

[aniccoli]

If I have a part with a cavity, is possibile using gui or using lisp to remove this cavity?

Thanks

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[ThomasKirkman]

Can you give an example, or upload an existing model?

[aniccoli]

Here an example-

Part has a cavity. Part is obtained through unite parts inside assembly.

[FriedhelmK]

Hi,

at the fast only a picture, in version 19.

Make it haf transparnt

Draw a frame araund the inner geo.

Move 3D

ignore Faults.

put it outside + confirm

[aniccoli]

Thanks for your reply. I try to explain what I need..I need the external surface of a welded assembly that may have cavities within, for example, a frame obtained by means of tubular, if I use getvolprop lisp function on the part obtained as the union of the parts of the assembly, the surface of the inner cavities is considered . The surface that counts is the external one and not internal.The surface that will be subject to coating or heat treatment.

[FriedhelmK]

Hello Alesandro,

I see no other way.
Drag the internal shape out as described.
Make the calculation.
Thereafter, the inner mold with undo back to the old place.

[aniccoli]

Is possible get external surface using lisp?

Is possible write a macro that

1.Get external and internal surfaces using this command (oli::getres (get_vol_prop :for_part :part "/name_part" :area) )

2.Subtract from this value, area of internal faces , but how?