I'm working with Catia, but Solidworks should be similar. STL is only defining surfaces, so working with volumes or surfaces gives the same results. Besides, you can also model surfaces only, so it can work as Ldraw.
Problem is that it uses the mathematical definitions of surfaces. Not a facettized one like Ldraw. If I reproduce the primitives with their facettes in Catia, I would have to model the part only with triangles to make sure verticles are matching. And then, all the advantages of such a software are gone.
I think I will make the part, export to STL, export to dat (which will give me too much triangles). And try to delete and substitute until I get a good result.
Problem is that it uses the mathematical definitions of surfaces. Not a facettized one like Ldraw. If I reproduce the primitives with their facettes in Catia, I would have to model the part only with triangles to make sure verticles are matching. And then, all the advantages of such a software are gone.
I think I will make the part, export to STL, export to dat (which will give me too much triangles). And try to delete and substitute until I get a good result.