> ### Configuring Mass Properties

> From the Mass Properties tab, you can change the density, the measurement units or configure the reference point of inertia tensor.

> 1. From the Analysis menu, select Show Entity Properties.

> The Entity Properties dialog box appears.

> Note: You can also right-click in the workspace and select Show Entity Properties, or in the Model Tree, select the model part or parts, then right-click and select Show Entity Properties.

> 2. Click the Mass Properties tab.
> 3. Click Options.

> The Options dialog box appears.

> 4. To change the density, enter a value in the Density field.

> To change the density units, select the unit for Mass and Length from their respective lists in the Units section.

> 5. To apply the density to model parts with unknown density, select Use Only for Parts with Unknown Density.

> To apply the density to all model parts, select Use for All Parts.

> 6. To change the display units, select the unit for Mass and Length from their respective lists in the Display Units section.
> 7. To compute the inertia tensor based on output coordinate system, select Output Coordinate System Origin.

> To compute the inertia tensor based on the center of gravity, select Center of Gravity.

> 8. Click OK.

> Mass properties are instantly calculated and displayed in the Mass Properties tab.

> Note: When a mass property cannot be calculated, “N/A” displays for that property. When this is the case, you can also click the Error Report button for a list of Mass properties that could not be calculated.

> 9. To save the changes, click Save As.

> The Save Mass Properties As dialog box appears.

> 10. Specify the path where you want to store the file and enter the file name, then click Save.

> AutoVue saves the results in a .txt file.

> 11. Click OK to close the Entity Properties dialog box.

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