Solidworks Macro - Create a Fillet

11 minute read

In this post, I tell you about how to create a Fillet through Solidworks VBA Macros in a sketch.

This post is an extension of Sketch - Create Corner Rectangle post.

Video of Code on YouTube

Please see below video how visually we can create a Fillet from Solidworks VBA macro.

Please note that there are no explaination given in the video.

Explaination of each line and why we write code this way is given in this post.

For Experience Macro Developer

If you are an experience Solidworks Macro developer, then you are looking for a specific code sample.

Below is the code for creating A Fillet from Solidworks VBA Macro.

                        ' Creating variable for Solidworks Sketch Segment
Dim swSketchSegment As SldWorks.SketchSegment
      
' Set the value of Solidworks Sketch segment by "CreateFillet" method from Solidworks sketch manager
Set swSketchSegment = swSketchManager.CreateFillet(0.1, swConstrainedCornerAction_e.swConstrainedCornerDeleteGeometry)

For creating a Fillet first you need to Create a variable of SketchSegment type.

After creating variable, you need to set the value of this variable.

For this you used CreateFillet method from Solidworks Sketch Manager.

This CreateFillet method set the value of SketchSegment type variable.

This CreateFillet method takes following parameters as explained:

Radius : Radius of the fillet in meters.
ConstrainedCorners : Action to take if the corner to be filleted is constrained or has a dimension.

If you want a more detail explaination then please read further otherwise this will help you to Create a Fillet From VBA Macro.

For Beginners Macro Developers

In this post, I tell you about CreateFillet method from Solidworks SketchManager object.

This method is most updated method, I found in Solidworks API Help.

So use this method if you want to create a Fillet.

Below is the code sample for creating a Fillet.

                        Option Explicit

' Creating variable for Solidworks application
Dim swApp As SldWorks.SldWorks

' Creating variable for Solidworks document
Dim swDoc As SldWorks.ModelDoc2

' Boolean Variable
Dim BoolStatus As Boolean

' Creating variable for Solidworks Sketch Manager
Dim swSketchManager As SldWorks.SketchManager

' Creating Variable for Solidworks Sketch Segment
Dim swSketchSegment As SldWorks.SketchSegment


' Main function of our VBA program
Sub main()

  ' Setting Solidworks variable to Solidworks application
  Set swApp = Application.SldWorks
  
  ' Creating string type variable for storing default part location
  Dim defaultTemplate As String
  ' Setting value of this string type variable to "Default part template"
  defaultTemplate = swApp.GetUserPreferenceStringValue(swUserPreferenceStringValue_e.swDefaultTemplatePart)

  ' Setting Solidworks document to new part document
  Set swDoc = swApp.NewDocument(defaultTemplate, 0, 0, 0)

  ' Selecting Front Plane
  BoolStatus = swDoc.Extension.SelectByID2("Front Plane", "PLANE", 0, 0, 0, False, 0, Nothing, swSelectOption_e.swSelectOptionDefault)

  ' Setting Sketch manager for our sketch
  Set swSketchManager = swDoc.SketchManager

  ' Inserting a sketch into selected plane
  swSketchManager.InsertSketch True
  
  ' Creating a "Variant" Variable which holds the values return by "CreateCornerRectangle" method
  Dim vSketchLines As Variant
  
  ' Creating a Corner Rectangle
  vSketchLines = swSketchManager.CreateCornerRectangle(0, 1, 0, 1, 0, 0)
  
  ' De-select the lines after creation
  swDoc.ClearSelection2 True
  
  ' Selecting Front Plane
  BoolStatus = swDoc.Extension.SelectByID2("Point1", "SKETCHPOINT", 0, 0, 0, False, 0, Nothing, swSelectOption_e.swSelectOptionDefault)

  ' Set the value of Solidworks Sketch segment by "CreateFillet" method from Solidworks sketch manager
  Set swSketchSegment = swSketchManager.CreateFillet(0.1, swConstrainedCornerAction_e.swConstrainedCornerDeleteGeometry)

  ' De-select the Fillet after creation
  swDoc.ClearSelection2 True
  
  ' Show Front View after creating Fillet
  swDoc.ShowNamedView2 "", swStandardViews_e.swFrontView
  
  ' Zoom to fit screen in Solidworks Window
  swDoc.ViewZoomtofit2

End Sub

                      

Understanding the Code

Now let us walk through each line in the above code, and understand the meaning of every line.

Option Explicit

This line forces us to define every variable we are going to use.

For more information please visit Solidworks Macros - Open new Part document post.

                        ' Creating variable for Solidworks application
Dim swApp As SldWorks.SldWorks

In this line, we are creating a variable which we named as swApp and the type of this swApp variable is SldWorks.SldWorks.

                        ' Creating variable for Solidworks document
Dim swDoc As SldWorks.ModelDoc2

In this line, we are creating a variable which we named as swDoc and the type of this swDoc variable is SldWorks.ModelDoc2.

                        ' Boolean Variable
Dim BoolStatus As Boolean

In this line, we create a variable named BoolStatus as Boolean object type.

                        ' Creating variable for Solidworks Sketch Manager
Dim swSketchManager As SldWorks.SketchManager

In above line, we create variable swSketchManager for Solidworks Sketch Manager.

As the name suggested, a Sketch Manager holds variours methods and properties to manage Sketches.

To see methods and properties related to SketchManager object, please visit this page of Solidworks API Help

                        ' Creating variable for Solidworks Sketch Segment
Dim swSketchSegment As SldWorks.SketchSegment

In this line, we are creating a variable which we named as swSketchSegment and the type of this swSketchSegment variable is SldWorks.SketchSegment.

We create variable swSketchSegment for Solidworks Sketch Segments.

To see methods and properties related to swSketchSegment object, please visit this page of Solidworks API Help

These all are our global variables.

As you can see in code sample, they are Solidworks API Objects.

So basically I group all the Solidworks API Objects in one place.

I have also place boolean type object at top also, because after certain point we will need this variable frequently.

Thus, I have started placing it here.

Next is our Sub procedure named main. This procedure hold all the statements (instructions) we give to computer.

                        ' Setting Solidworks variable to Solidworks application
Set swApp = Application.SldWorks

In this line, we are setting the value of our Solidworks variable which we define earlier to Solidworks application.

                        ' Creating string type variable for storing default part location
Dim defaultTemplate As String
' Setting value of this string type variable to "Default part template"
defaultTemplate = swApp.GetUserPreferenceStringValue(swUserPreferenceStringValue_e.swDefaultTemplatePart)

                      

In 1st statement of above example, we are defining a variable of string type and named it as defaultTemplate.

This variable defaultTemplate, hold the location the location of Default Part Template.

In 2nd line of above example. we assign value to our newly define defaultTemplate variable.

We assign the value by using a Method named GetUserPreferenceStringValue(). This method is a part of our main Solidworks variable swApp.

                        ' Setting Solidworks document to new part document
Set swDoc = swApp.NewDocument(defaultTemplate, 0, 0, 0)

In this line, we set the value of our swDoc variable to new document.

For detailed information about these lines please visit Solidworks Macros - Open new Part document post.

I have discussed them thoroghly in Solidworks Macros - Open new Part document post, so do checkout this post if you don’t understand above code.

                        ' Selecting Front Plane
BoolStatus = swDoc.Extension.SelectByID2("Front Plane", "PLANE", 0, 0, 0, False, 0, Nothing, swSelectOption_e.swSelectOptionDefault)

In above line, we select the front plane by using SelectByID2 method from Extension object.

For more information about selection method please visit Solidworks Macros - Selection Methods post.

                        ' Setting Sketch manager for our sketch
Set swSketchManager = swDoc.SketchManager

In above line, we set the sketch manager variable to current document’s sketch manager.

                        ' Inserting a sketch into selected plane
swSketchManager.InsertSketch True

In above line, we use InsertSketch method of SketchManager and give True value.

This method allows us to insert a sketch in selected plane.

                        ' Creating a "Variant" Variable which holds the values return by "CreateCornerRectangle" method
Dim vSketchLines As Variant
    
' Creating a Corner Rectangle
vSketchLines = swSketchManager.CreateCornerRectangle(0, 1, 0, 1, 0, 0)

In above sample code, we 1st create a variable named vSketchLines of type Variant.

A Variant type variable can hold any type of value depends upon the use of variable.

In 2nd line, we set the value of variable vSketchLines.

Value of vSketchLinesis an array of lines. This array is send as return value when we use CreateCornerRectangle method.

This CreateCornerRectangle method is part of swSketchManager and it is the latest method to create a corner rectangle.

For detail explaination on CreateCornerRectangle method, please see Sketch - Create Corner Rectangle post.

In the above code sample I have used (0, 1, 0) Upper-left point in Y-direction.

For Lower-right point I used (1, 0, 0) which is 1 point distance in X-direction.

                        ' De-select the Rectangle after creation
swDoc.ClearSelection2 True

In above line, we de-select the ractangle we just create.

                        ' Selecting Front Plane
BoolStatus = swDoc.Extension.SelectByID2("Front Plane", "PLANE", 0, 0, 0, False, 0, Nothing, swSelectOption_e.swSelectOptionDefault)

In above line, we select the front plane by using SelectByID2 method from Extension object.

For more information about selection method please visit Solidworks Macros - Selection Methods post.

                        ' Set the value of Solidworks Sketch segment by "CreateFillet" method from Solidworks sketch manager
Set swSketchSegment = swSketchManager.CreateFillet(0.1, swConstrainedCornerAction_e.swConstrainedCornerDeleteGeometry)

In above line, we set the value of Solidworks Sketch Segment variable swSketchSegment by CreateFillet method from Solidworks Sketch Manager.

This CreateFillet method takes following parameters:

Radius : Radius of the fillet in meters.
ConstrainedCorners : Action to take if the corner to be filleted is constrained or has a dimension.

Below Image described the Parameters for a Fillet.

fillet_parameters

In our code, I have used following values:

Radius : I have used 0.1 (This value is in meter) as the radius of fillet.
ConstrainedCorners : I have used swConstrainedCornerAction_e.swConstrainedCornerDeleteGeometry enumerator as value for constraining corners.

In swConstrainedCornerAction_e we have 4 constant values.

These values are as follows:

swConstrainedCornerDeleteGeometry : 2 = Delete the constraint or dimension and add the fillet
swConstrainedCornerInteract : 0 = Ask the user whether to delete the geometry or stop processing
swConstrainedCornerKeepGeometry : 1 = Keep the constraint or dimension by creating a virtual intersection point before adding the fillet
swConstrainedCornerStopProcessing : 3 = Do not delete the constrain or dimension and do not create the fillet

NOTE

It is very important to remember that, when you give distance or any other numeric value in Solidworks API, Solidworks takes that numeric value in Meter only.

Solidworks API does not care about your application’s Unit systems.

For example, I works in ANSI system means inches for distance. But when I used Solidworks API through VBA macros or C#, I need to use converted numeric values.

Because Solidworks API output the distance in Meter which is not my requirement.

                        ' De-select the Fillet after creation
swDoc.ClearSelection2 True

In the above line of code, we deselect the Fillet we have created.

For de-selecting, we use ClearSelection2 method from our Solidworks document name swDoc.

                        ' Show Front View after creating Fillet
swDoc.ShowNamedView2 "", swStandardViews_e.swFrontView

In the above line of code, we update the view orientation to Front View.

In my machine, after inserting a sketch view orientation does not changed.

Because of this I have to update the view to Front view.

For showing Front View we used ShowNamedView2 method from our Solidworks document name swDoc.

This method takes 2 parameter described as follows:

VName : Name of the view to display or an empty string to use ViewId instead

ViewId : ID of the view to display as defined by swStandardViews_e or -1 to use the VName argument instead.

NOTE: If you specify both VName and ViewId, then ViewId takes precedence if the two arguments do not resolve to the same view.

swStandardViews_e has following Standard View Types:

swBackView
swBottomView
swDimetricView
swFrontView
swIsometricView
swLeftView
swRightView
swTopView
swTrimetricView

In our code, we did not use VName instead I used empty string in form of ”“ symbol.

I used ViewId value to specify view and used swStandardViews_e.swFrontView value to use Standard Front View.

                        ' Zoom to fit screen in Solidworks Window
swDoc.ViewZoomtofit

In this last line we use zoom to fit command.

For Zoom to fit, we use ViewZoomtofit method from our Solidworks document variable swDoc.

This is it !!!

If you found anything to add or update, please let me know on my e-mail.

VBA Language feature used in this post

In this post used some features of VBA programming language.

This section of post, has some brief information about the VBA programming language specific features.

We use Option Explicit for capturing un-declared variables. If you want to read more about Option Explicit then please visit Declaring and Scoping of Variables.
Then we create variable for different data types. If you don’t know about them, then please visit Variables and Data-types posts of this blog. These posts will help you to understand what Variables are and how to use them.
Then we create main Sub procedure for our macro. If you don’t know about the Sub procedure, then I suggest you to visit VBA Sub and Function Procedures and Executing Sub and Function Procedures posts of this blog. These posts will help you to understand what Procedures are and how to use them.
In most part we create some variables and set their values. We set those values by using some functions provided from objects. If you don’t know about the functions, then you should visit VBA Functions and VBA Functions that do more posts of this blog. These posts will help you to understand what functions are and how to use them.

Solidworks API Objects

In this post, for creating a Fillet, we use Solidworks API objects and their methods.

This section contains the list of all Solidworks Objects used in this post.

I have also attached links of these Solidworks API Objects in API Help website.

If you want to explore those objects, you can use these links.

These Solidworks API Objects are listed below:

Solidworks Application Object

If you want explore Properties and Methods/Functions of Solidworks Application Object object you can visit this link.

Solidworks Document Object

If you want explore Properties and Methods/Functions of Solidworks Document Object object you can visit this link.

Solidworks Sketch Manager Object

If you want explore Properties and Methods/Functions of Solidworks Sketch Manager Object you can visit this link.

Solidworks Sketch Segment Object

If you want explore Properties and Methods/Functions of Solidworks Sketch Segment Object you can visit this link.

Hope this post helps you to create a Fillet in Sketches with Solidworks VB Macros.

For more such tutorials on Solidworks VBA Macros, do come to this blog after sometime.

Till then, Happy learning!!!