That is a great scan Dave, I was going to drive a lazy susan using the existing turntable, by adapting it. Now after seeing this scan I probably won't bother.
That's exactly what I want to do, and all that remains is to get it into CAD.
What size was that scan Dave?...I just did a small torsion bar tube for one of my engines, and it ended up being 66MB as a STL file.