Although I have two different plugins to make exploded views, I do them manually. I find I need to tweak the positions of the parts enough anyway that there's no benefit to having a plugin move the parts in the first place. Here's another example of an exploded view. As you can see, some of the sub-assemblies don't need to be exploded and some things need to be only partially exploded to show the required detail.

http://farm7.static.flickr.com/6009/5943322591_db7155fdb9_z.jpg