No you can't. And using explode is not recommended as you probably know by now. You might be able to slice the object. Post an image so we can have a look.
i already tried to slice the object, but it doesnt work... =( post the image? hmmmm.... u mean post the autocad file?
i downloaded some 3d model from the internet, but the 3d furniture i downloaded they had already block together...
i got no choice but to draw by myself.... =(