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macro export moment of inertia of assembly to excel

Question asked by Collin Koolen on Apr 7, 2016
Latest reply on Apr 11, 2016 by Michael Spens

hi i'm new to this forum

i'm not new to solid works


my problem is this: i have an assembly and i want to export the 'Moments of inertia Taken at the output coordinate system' to excel

i got so far that i can output the principal moments of inertia of the x axis at the center of mass of each part with a macro.

but i want the moments of inertia taken at the output coordinat system of a whole assembly


here is my code so far can anybody help me

Dim swApp As SldWorks.SldWorks

Dim SwModel As SldWorks.ModelDoc2

Dim swModExt As SldWorks.ModelDocExtension

Dim swAssembly As SldWorks.AssemblyDoc

Dim SwComp As SldWorks.Component2

Dim MassProp As SldWorks.MassProperty

Dim Component As Variant

Dim Components As Variant

Dim Bodies As Variant

Dim BodyInfo As Variant

Dim CenOfM As Variant

Dim RetBool As Boolean

Dim RetVal As Long

Dim xlApp As Excel.Application

Dim xlWorkBooks As Excel.Workbooks

Dim xlBook As Excel.Workbook

Dim xlsheet As Excel.Worksheet

Dim OutputPath As String

Dim OutputFN As String

Dim xlCurRow As Integer


Sub main()

Set swApp = Application.SldWorks

Set SwModel = swApp.ActiveDoc

If SwModel Is Nothing Then

        swApp.SendMsgToUser2 "An assembly must be an active document.", swMbWarning, swMbOk

        Exit Sub

      End If



If SwModel.GetType <> swDocASSEMBLY Then

        swApp.SendMsgToUser2 "An assembly must be an active document.", swMbWarning, swMbOk

        Exit Sub


Set swAssembly = SwModel

End If

Set swModExt = SwModel.Extension

Set MassProp = swModExt.CreateMassProperty


OutputPath = Environ("USERPROFILE") & "\Google Drive\"

OutputFN = SwModel.GetTitle & ".xlsx"

If Dir(OutputPath & OutputFN) <> "" Then

Kill OutputPath & OutputFN

End If

Set xlApp = Excel.Application

xlApp.Visible = True

Set xlWorkBooks = Excel.Workbooks

Set xlBook = xlWorkBooks.Add()

Set xlsheet = xlBook.Worksheets("Blad1")

xlsheet.Range("A1").Value = "Component"

xlsheet.Range("B1").Value = "Type"

xlsheet.Range("C1").Value = "Mass (kg)"

xlsheet.Range("D1").Value = "Volume [m³]"

xlBook.SaveAs OutputPath & OutputFN

xlCurRow = 2

RetVal = swAssembly.ResolveAllLightWeightComponents(False)

Components = swAssembly.GetComponents(False)

For Each Component In Components

    Set SwComp = Component

    If SwComp.GetSuppression <> 0 Then

    'If LCase(Right(SwComp.GetPathName, 3)) <> "asm" Then

        Bodies = SwComp.GetBodies2(0)

'MsgBox SwComp.Name

        'If Bodies <> Empty Then

            RetBool = MassProp.AddBodies(Bodies)

            CenOfM = MassProp.CenterOfMass


            xlsheet.Range("A" & xlCurRow).Value = SwComp.Name

            xlsheet.Range("C" & xlCurRow).Value = MassProp.Mass

            xlsheet.Range("D" & xlCurRow).Value = MassProp.Volume

           xlsheet.Range("E" & xlCurRow).Value = MassProp.PrincipleMomentsOfInertia



            If LCase(Right(SwComp.GetPathName, 3)) = "asm" Then

            xlsheet.Range("C" & xlCurRow).Value = 0

            ElseIf LCase(Right(SwComp.GetPathName, 3)) = "prt" Then

            xlsheet.Range("B" & xlCurRow).Value = "Part"


            xlsheet.Range("B" & xlCurRow).Value = "Undetermined"

            End If 'Right 3 of file extension

            xlCurRow = xlCurRow + 1



        'End If 'UBound(Bodies) <> -1


    'End If 'Not an Assembly

    End If 'swComp.GetSuppression <> 0

Next Component






End Sub





i already took a look at these two thread's

Macro for calculation of Moment of inertia

Re: macro to export center of mass/gravity of parts from an assembly to excel


can you help me