Hide Table of Contents

Add Spring to Motion Study Example (VBA)

This example shows how to add a spring to a motion study.

' Preconditions:  
' 1. Open public_documents\samples\tutorial\api\wrench.sldasm.
' 2. Verify that the MotionManager tab is visible. If it is not visible,
'    click View > MotionManager.
' 3. Reference the SOLIDWORKS MotionStudy type library.
' 4. Open the Immediate window.
' Postconditions:
' 1. Adds a spring feature between the grips of the wrench.
' 2. Examine the Immediate window.
' NOTE: Because the assembly is used elsewhere, do not save changes.

Option Explicit


Sub main()


    Dim swApp As SldWorks.SldWorks

    Dim swModel As SldWorks.ModelDoc2

    Dim swModelDocExt As SldWorks.ModelDocExtension

    Dim swMotionMgr As MotionStudyManager

    Dim swMotionStudy1 As MotionStudy

    Dim swSpringFeat As SimulationSpringFeatureData

    Dim boolstatus As Boolean

    Dim swFeat As SldWorks.Feature

    Dim swSelMgr As SelectionMgr


    Set swApp = Application.SldWorks

    Set swModel = swApp.ActiveDoc

    Set swModelDocExt = swModel.Extension

    Set swSelMgr = swModel.SelectionManager


    ' Get the MotionManager

    Set swMotionMgr = swModelDocExt.GetMotionStudyManager()

    If (swMotionMgr Is Nothing) Then


    End If


    ' Get and activate "MotionStudy1_Distance=0.5in"

    Set swMotionStudy1 = swMotionMgr.GetMotionStudy("MotionStudy1_Distance=0.5in")

    If (swMotionStudy1 Is Nothing) Then

        MsgBox "MotionStudy1_Distance=0.5in is not available."


    End If


    ' Activate swMotionStudy1



    ' Define Spring feature

    Set swSpringFeat = swMotionStudy1.CreateDefinition(swFmAEMLinearMotionSpring)

    If swSpringFeat Is Nothing Then

       Debug.Print "ERROR: Creation of Spring feature data object failed."

        Exit Sub

    End If


    ' Select the faces for the spring's endpoints

    Dim swFace1 As face2, swFace2 As face2

    swModel.ShowNamedView2 "*Left", 3


    boolstatus = swModelDocExt.SelectByID2("", "FACE", 0.03344586330968, 0.0525345575174, 0, True, 0, Nothing, 0)

    Set swFace1 = swSelMgr.GetSelectedObject6(1, -1)

    boolstatus = swModelDocExt.SelectByID2("", "FACE", 0.02244533711473, 0.0131288302002, 2.238961779386E-04, True, 0, Nothing, 0)

    Set swFace2 = swSelMgr.GetSelectedObject6(2, -1)


   ' Set spring's characteristics

    swSpringFeat.SetEndPoints swFace1, swFace2

    swSpringFeat.CoilDiameter = 0.0102

    swSpringFeat.NumberOfCoils = 3

    swSpringFeat.WireDiameter = 0.00152

    swSpringFeat.FreeLength = 0.02


     ' Create Spring feature

    Set swFeat = swMotionStudy1.CreateFeature(swSpringFeat)


    If swFeat Is Nothing Then

        Debug.Print " ERROR: Creation of the Spring feature failed."


        Debug.Print "Type of the feature added: " & swFeat.GetTypeName2

    End If

    Debug.Print "Type of spring as defined in swSpringType_e: " & swSpringFeat.Type

End Sub

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Add Spring to Motion Study Example (VBA)
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: API Help (English only) 2019 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.