Hi Jawad, Sorry, lost track of this one . . . hope this is still helpful. Try out the MeshToolkit from the package manager. This allows you to create and manage seperate solids as meshes for export to obj. The example I am showing here structures the export as a different file for each mesh. You can read more about the capabilities of the Mesh Toolkit on the DynamoPrimer: http://dynamoprimer.com/10_Packages/10-2_Mesh-Toolkit.html
