It looks like you have only included two part files along with the assembly file and therefore it fails to generate the entire assembly.
The mass properties are based on the density of the materials defined for each part in the FeatureManager. To find the center of mass or moment of inertia at any point in your study...
1. Run your simulation.
2. Open the Mass Properties dialog box from the menu Tools > Evaluate > Mass Properties
3. You will be prompted to rebuild the assembly. Click Yes.
4. Move the assembly to the frame that corresponds to the position you want.
5. Click the Recalculate button in the Mass Properties dialog box. You will see the location of the center of mass for the whole assembly at that particular instant in the motion simulation. The dialog box will also give you the coordinates of the center of mass and information about the moments of inertia.
Thanks for your reply and guidance. I’m not at the computer right now, but if I get what you’re saying, I need to run mass properties and rebuild the assembly so Solidworks recognizes the materials assigned and then run a motion analysis? Small question, does it matter if I do this in the Model tab vs the Motion Study tab? I’ll be able to try this out soon.
Sorry about that, I forgot I have parts in a different folder in the assembly.. I have materials assigned to each of the parts, I guess my question was if the motion analysis study realizes this, because the resulting torque seems smaller than I was expecting.
Thanks for the advice,