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Create Variable-pitch Helix (VB.NET)

This example shows how to create a variable-pitch helix.

' Preconditions: Specified part document template exists.
' Postconditons: A variable-pitch helix is created.

Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System

Partial Class SolidWorksMacro

Public Sub Main()

Dim swModel As ModelDoc2
Dim swSketchManager As SketchManager
Dim swSketchSegment As SketchSegment
Dim swFeatureManager As FeatureManager
Dim swFeature As Feature
Dim errors As Integer
        Dim status As Boolean

        ' Create part document
        swModel = swApp.NewDocument("C:\Documents and Settings\All Users\Application Data\SOLIDWORKS\SOLIDWORKS 2011\templates\Part.prtdot", 0, 0, 0)
"Part1", False, errors)
        swModel = swApp.ActiveDoc
        swSketchManager = swModel.SketchManager
        swFeatureManager = swModel.FeatureManager

' Sketch a circle
        swSketchSegment = swSketchManager.CreateCircle(0.0#, 0.0#, 0.0#, 0.045549, 0.013926, 0.0#)

' Create a variable-pitch helix using the sketched circle
        status = swFeatureManager.InsertVariablePitchHelix(False, True, 1, 4.712388980385)
        status = swFeatureManager.AddVariablePitchHelixFirstPitchAndDiameter(0.053, 0.05382625271268)
        status = swFeatureManager.AddVariablePitchHelixSegment(0.0265, 0.05382625271268, 0.5)
        status = swFeatureManager.AddVariablePitchHelixSegment(0.03975, 0.05382625271268, 0.75)
        status = swFeatureManager.AddVariablePitchHelixSegment(0.046375, 0.05382625271268, 0.875)
        status = swFeatureManager.AddVariablePitchHelixSegment(0.053, 0.05382625271268, 1)
        swFeature = swFeatureManager.EndVariablePitchHelix()

End Sub

    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks

End Class

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