Hi Elrick,

> So the metallic lighting option would help best for surface inspection?

Yes, I think so.


> Are there any software capable of measuring minimum curvature in lofts or splines?

Rhino has a CurvatureAnalysis command that can measure min or max radius of curvature and display it with a false color display on the surface.


> If only it were possible to keep the curvature in a spline larger than the required shell this problem might be dodged then?

Yeah it would help to avoid this one category of problem anyway with offset surfaces becoming self intersecting.


> In this situation it might have been really great if you could scale down a part
> respective to the XYZ axis. Are there any such way in MoI? Manipulating the
> bounding box of a whole body..?

Well, there is the Transform > Scale command - that will scale an object uniformly along the XYZ axes around the origin point that you pick. But I'm sorry I'm not really quite sure if that's the kind of scaling you're referring to or not, you may need to explain what you're looking for in some more detail.

- Michael