Boolean Operation: Common

 

 

 

 

Function

 

Common removes both the Master and Tool shapes except for the part overlapped by the two shapes.  This command is mainly used between two solids.  It may create an incorrect shape if the command is used between two faces.

 

 

 

 

 

Call

Geometry > Boolean Operation > Common

 

 

 

 

<Common>

Select Boolean Master

Select an independent Shape which will contain the common area.  The result shape will only carry the name of the Master object at the end.

 

Select Boolean Tool

Select a Boolean Tool shape, which will define the common region from the Master Shape.

 

 

Delete Tool Object(s)

This option deletes Tool Object leaving the shapes subsequent to a Boolean Operation.

 

 

 

 

Notes

 

Using Point and Compound in Boolean Operation may result invalid Shapes. We do not recommend to use these types of Geometry Shape in Boolean Operation.

All shapes retain internal Tolerances, which the program automatically calculates and assigns.  Sometimes, improper Tolerances can be assigned to very small shapes, which can lead to problems.  Such improper Tolerance information may also come from a Geometry Data File, especially when an IGES file is imported (STEP file format is recommended.)  Improper Tolerances cause improper Boolean Operations and abnormalities in other operations such as Divide Face, Divide Solid, etc.
Thus, if a shape seems to have a invalid tolerance, user can test and correct it using the tolerance optimization function which is located in Main Menu > Geometry > Repair > Optimize Tolerance.

 

 

Example

<Boolean Common Example>