Is there a way to: join two those cubes into one object (without separating one of cubes into a mesh and then applying Union) and automatically deleting the inner vertex from this mesh (Union does this, but in fact model that I am working on has hundreds of such objects, so doing this manually will take hours). Is there a simpler way? Any links, tutorials?
Edit: separating ALL loose parts (as in http://blenderartists.org/forum/showthread.php?t=167820) and then Union-ing them alltogether works on the example above, but on real model Blender just crashes with exception 0xc000000d.