Hello

I would like to create a cavity from 2 objects. Object 1 is the mold (bloc) and Object 2 will have the shape of the cavity.

When object 1 and 2 are part files, it is easy. I am using the feature <<cavity>> in object 1 and select object 2 to create the cavity.

However, when object 2 is an assembly, I don't know how to do it. I have tried to save object 2 as a part file, but it is not working when I choose object 2.sldprt as the. The message is <<unable to create this feature because it would result in zero-thickness geometry>>. When I select an assembly in the cavity feature, it mentions that we can only choose part.

I have solidworks 2018 Professionnal.

Thank you for your help!