This is really cool - take some time to play around with the model. Right-click to select cross sections, move parts of the model, etc... (Hint: CTRL + T displays the main toolbar. If orbit doesn't work as expected, hit "Zoom Extents")
Still being perfected at the moment, and you will need the same dwf ActiveX control from Autodesk that my Views page requires. This one isn't quite so good - you need to hide the front, back and disc objects for the best effect. I'll let you figure that out.