Inspection >> Geometric Tolerance >> Concentricity

• Inspection >> Geometric Tolerance >> Concentricity command calculates and displays the concentricity of two selected geometries as the 2D distance between the calculated center axis.

Step   

Execute   Inspection >> Geometric Tolerance >> Concentricity command as follows:

Before execute this command, it is better to create a reference vector located in the center of two to-be selected geometries.

In order to create this vector, create two circle by using  Ref. Geometry  >> Create  >> Circle >> Pick Points

and Ref. Geometry  >> Create  >> Vector >> Pick Points  in consecutive.

1. Select  Inspection >> Geometric Tolerance >> Concentricity from the menu or click the corresponding icon from the Inspection toolbar.

2. Click the right mouse button, if there is no visible Section Deviation, this shortcut menu appears.

    If there is visible Section Deviation With Surfaces, this shortcut menu appears:

If there is visible Section Deviation With Curves, this shortcut menu appears:

Click On Vertices to select a geometry composed of vertices; or On Curves to select curves; or On Faces to select a geometry composed of polygonal faces; or On Ref. Circle to select a reference circle; or On Ref. Cylinder to select a reference cylinder; or On Section to select a geometry on the sections of both the scan shell and the design model; or From Curves to select curves, then calculate the concentricity for the vertices around them; or On Scan Section to select a geometry only on the section of the scan shell; or On Design Section to select a geometry only on the section of the design model; or Pick Ref. Vector to select a reference vector and make it the center axis.    

3. After select the first geometry, click Done on the right mouse button shortcut menu to finalize the selection of the first geometry.

4. Select another geometry, then click Done on the right mouse button shortcut menu.

5. Select a proper position to put the concentricity text box.

Result

        Geometric Tolerance Information is displayed in output window as follows,

        ----------------------------------------

        Geometric Tolerance Information

        ----------------------------------------

        * Name : Concentricity 46

        * Concentricity : 1.204mm

        * 1st Circle Center : --22.250, -9.402, 14.049

        * 2nd Circle Center : -22.586, -9.370, 15.205

        * Circle Axis :0.567, 0.811, 0.143 7.94957mm

        * 1st Circle Radius : 5.592mm

        * Standard Deviation: 0.229

        * 2nd Circle Radius: 9.452

        * Standard Deviation: 0.636

        * 1st Region Type: User selected vertices

        * 2nd Region Type: User selected vertices

 

Note  

• Smaller values indicate a more concentric shape. Zero indicates a complete concentricity.
• All Concentricity are registered to the Geometric Tolerance node in the Project Tree Window.
• The difference between the RMB menu options beginning with On ... ( such as On Curves, On surfaces, On Faces, etc) and those beginning with From ... (such as From Curves, From Surfaces, From Faces, etc) is: when you select On ..., you can use the geometries on only one scan shell; but when you select From ..., you can use the geometries on many scan shells.