Discussion Forum

I am importing a Solidworks assembly using the CAD Import module.

The assembly basically has a reservoir for gas and some tubes. When I import it into COMSOL, the internal empty spaces from the assembly are not a domain. I have no idea how to convert that into a domain.

The reason I need a domain is because I want to have a line power source. I created a Bezier polygon, basically a line, just like in the cylinder tutorial in the acoustics module, and I cannot select it as a line source. Every edge of my assembly can be selected, but not the Bezier polygon. As far as I can tell, this is due to the line not being connected to any domain. It's just free-floating in the internal void of my assembly.

Now, I did try to import the assembly, subtract it from a solid block to get only the internals, but that way I need to know the exact dimensions of my part, otherwise I get left with bits and pieces of the original solid block that weren't subtracted. And if I have to look up all the dimensions, then that defeats the purpose of simply importing an assembly.

Any help would be appreciated.