Mass inertia product

[Guillem_dlc]

TL;DR Summary

How is the mass inertia product calculated? I have two examples and each one uses something different.

How is the mass inertia product calculated? I have two examples and each one uses something different.

Example 1:

Example 2: moments and product of inertia of the cylinder

 

[scottdave]

What is the shape and orientation of Example 1?

 

[Guillem_dlc]

What is the shape and orientation of Example 1?

That's it, I got it, thank you!