See also : CAD-Line dialog
Use the Mass-Properties tab
•Enter user-defined mass properties - see below
•Import from SolidWorks the mass-properties of a SolidWorks document - see below
•Review the total mass-properties on the Part - see below
CAD-Line dialog > Mass- Properties tab
Moment-of-Inertia: Radius-of-Gyration, and Point-Mass.
If you enter a Mass but do NOT enter a Radius-of-Gyration or Moment-of-Inertia, the Mass is reduced to a Point Mass.
The position of the mass is at (center-of-Mass: X–axis, center-of-Mass: Y–axis).
If you enter Moment-of-Inertia, then the equivalent Radius-of-Gyration, is :
If you enter Radius-of-Gyration, then the equivalent Moment-of-Inertia, is:
Parallel Axis Theorem
We use for you the Parallel Axis Theorem to calculate the Moment-of-Inertia about the Part's instantaneous center-of-rotation.
= distance to the Center-of-Mass from the center-of-rotation.
When you import a SolidWorks document onto a CAD-Line, you can also import the SolidWorks Mass-Properties
Button IMPORT / UPDATE SolidWorks Mass Properties
Note: Before you click button , make sure the active SolidWorks document is on the CAD-Line.
Button Remove SolidWorks Mass Properties
Total Mass Properties:
The Total Mass Properties is ALL CAD-Lines in one Part.
EXPLICITLY: the Total Mass Properties include, for each Part, ALL of those:
•Mass and Mass-Properties as we calculate for you for ALL Profile/Extrusions in the Part
•User Mass-Properties as you define for ALL CAD-Lines in the Part
•SolidWorks Mass-Properties as you define for ALL CAD-Lines in the Part
Inertia about Part's Rotational-Axis = Total Inertia about center-of-Mass + Mass × (Distance to Part's Rotational-Axis)2
Relationship between Moment-of-Inertia and Radius of Gyration
Total Inertia (about center-of-Mass) = Total Mass × (Radius-of-Gyration)2
Total Mass of Part =
Mass of all Extrusions + Total mass of other CAD-Lines in the same Part
Total Inertia about the Part's center-of-Gravity =
Inertia of all Extrusions + Total Inertia of other CAD-Lines in the same Part