Cleaner lines with Make2D

Rhino Rhino for Windows
1

Question regarding to make2d
If I import a 3ds/obj/dwg model into rhino, I will have to use MeshTONURB in order to convert the mesh,
thus using make2d afterwards will bring extra lines out compare to native rhino model.
Is there any way which I can get cleaner lines with imported model?

Cheers,
Tommy

2

I suppose an important consideration is what you want to do with the Make2D output. In case you just need it for visualization (and not as a foundation for further modeling or production), you might be able to get away with using a Technical view.