Inertia Tensor not appearing in mass properties

[bonbonbaron]

Hi,

Normally when you open the Mass Properties of an assembly, you see an inertia tensor (or matrix) near the bottom with values for Ixx, Ixy, etc. However, for one of my assemblies I'm only seeing the overall mass and center of gravity. Can anyone have any guesses as to why I'm not seeing the inertia tensor in this particular scenario?

Thanks,
Michael