There's difference between spin and rotate. To slowly move a 3D object you use the circle controls of the PluginPac 3D LE and set how much you want to rotate. You can fine tune by normal methods, stretch, resize, etc, or use the plug-in or both.
Something real fast I just threw together in five minutes.
A quickie tutorial and Real Media example
http://www.wideopenwest.com/%7Ewvg/Rotate.htm