Autodesk Inventor Customization

[#1]

Hello All, any input would be much apprciated. 

The macro crashes on the second last line:

"Call oSketch.DimensionConstraints.AddOffset(olines(1), oLine2, oDimCoords(1), False, False)"

Here is the full macro code:

Option Explicit
Dim oDoc As PartDocument
Dim oDef As PartComponentDefinition
Dim oApp As Inventor.Application

' CONSTANT SIZES FOR MYLAR CREATION
Const Mylar_X_Length = 80 'mm
Const Mylar_Y_Length = 80 'mm
Const Mylar_Thickness = 20 'mm
Const Mylar_Width = 20 'mm
Const Mylar_Fillet = 6 'mm
Const Mylar_MCAllow = 3 'mm

Public Sub L_Mylar()

Dim oSketch As PlanarSketch

Set oDoc = ThisApplication.Documents.Add(kPartDocumentObject, "Z:\TEMPLATES\INVENTOR\Sheet Metal (mm).ipt", True)
Dim oTransGeom As TransientGeometry
Set oTransGeom = ThisApplication.TransientGeometry
Dim oCoords(1 To 8) As Point2d
Dim oDimCoords(1 To 5) As Point2d
Dim oArc As SketchArc
Dim oLine As SketchLine
Dim olines(1 To 6)
Dim oLine2 As SketchLine

Set oDef = oDoc.ComponentDefinition

Set oCoords(1) = oTransGeom.CreatePoint2d(0, 0)
Set oCoords(2) = oTransGeom.CreatePoint2d(0, Mylar_Y_Length / 10)
Set oCoords(3) = oTransGeom.CreatePoint2d(Mylar_X_Length / 10, Mylar_Y_Length / 10)
Set oCoords(4) = oTransGeom.CreatePoint2d(Mylar_X_Length / 10, (Mylar_Y_Length - Mylar_Thickness) / 10)
Set oCoords(5) = oTransGeom.CreatePoint2d((Mylar_Thickness + Mylar_Fillet) / 10, (Mylar_Y_Length - Mylar_Thickness) / 10)
Set oCoords(6) = oTransGeom.CreatePoint2d((Mylar_Thickness + Mylar_Fillet) / 10, (Mylar_Y_Length - Mylar_Thickness - Mylar_Fillet) / 10)
Set oCoords(7) = oTransGeom.CreatePoint2d((Mylar_Thickness) / 10, (Mylar_Y_Length - Mylar_Thickness - Mylar_Fillet) / 10)
Set oCoords(8) = oTransGeom.CreatePoint2d((Mylar_Thickness) / 10, 0)

Set oSketch = oDef.Sketches.Add(oDef.WorkPlanes.Item("XY Plane"))
oSketch.Name = "SK_00 - PROFILE"

oSketch.Edit
Set olines(1) = oSketch.SketchLines.AddByTwoPoints(oCoords(1), oCoords(2))
Set olines(2) = oSketch.SketchLines.AddByTwoPoints(olines(1).EndSketchPoint, oCoords(3))
Set olines(3) = oSketch.SketchLines.AddByTwoPoints(olines(2).EndSketchPoint, oCoords(4))
Set olines(4) = oSketch.SketchLines.AddByTwoPoints(olines(3).EndSketchPoint, oCoords(5))
Set oArc = oSketch.SketchArcs.AddByCenterStartEndPoint(oCoords(6), olines(4).EndSketchPoint, oCoords(7))
Set olines(5) = oSketch.SketchLines.AddByTwoPoints(oArc.EndSketchPoint, oCoords(8))
Set olines(6) = oSketch.SketchLines.AddByTwoPoints(olines(5).EndSketchPoint, olines(1).StartSketchPoint)

Call oSketch.GeometricConstraints.AddPerpendicular(olines(1), olines(2))
Call oSketch.GeometricConstraints.AddParallel(olines(1), olines(3))
Call oSketch.GeometricConstraints.AddParallel(olines(1), olines(5))
Call oSketch.GeometricConstraints.AddParallel(olines(2), olines(4))
Call oSketch.GeometricConstraints.AddParallel(olines(2), olines(6))
Call oSketch.GeometricConstraints.AddTangent(olines(4), oArc)
Call oSketch.GeometricConstraints.AddTangent(olines(5), oArc)
Call oSketch.GeometricConstraints.AddGround(olines(1).StartSketchPoint)
Call oSketch.GeometricConstraints.AddVertical(olines(1))

Set oDimCoords(1) = oTransGeom.CreatePoint2d(-0.5, oCoords(2).Y / 2)
Set oDimCoords(2) = oTransGeom.CreatePoint2d(oCoords(3).X / 2, oCoords(3).Y + 0.5)
Set oDimCoords(3) = oTransGeom.CreatePoint2d(oCoords(3).X + 0.5, oCoords(3).Y - (Mylar_Thickness / 2) / 10)
Set oDimCoords(4) = oTransGeom.CreatePoint2d(Mylar_Thickness / 10 + 0.5, oCoords(3).Y - (Mylar_Thickness / 2) / 10 - 0.5)
Set oDimCoords(5) = oTransGeom.CreatePoint2d((Mylar_Thickness / 2) / 10, -0.5)


Call oSketch.DimensionConstraints.AddOffset(olines(6), olines(2), oDimCoords(1), False, False)
Call oSketch.DimensionConstraints.AddOffset(olines(1), olines(3), oDimCoords(2), False, False)
Call oSketch.DimensionConstraints.AddOffset(olines(2), olines(4), oDimCoords(3), False, False)
Call oSketch.DimensionConstraints.AddRadius(oArc, oDimCoords(4), False)
Call oSketch.DimensionConstraints.AddOffset(olines(1), olines(5), oDimCoords(5), False, False)

Dim oCollection As ObjectCollection
Set oCollection = ThisApplication.TransientObjects.CreateObjectCollection
oCollection.Add olines(1)
oCollection.Add olines(2)
oCollection.Add olines(3)
oCollection.Add olines(4)
oCollection.Add oArc
oCollection.Add olines(5)
oCollection.Add olines(6)

Call oSketch.OffsetSketchEntitiesUsingDistance(oCollection, Mylar_MCAllow / 10, False, False, True)
Set oLine2 = oCollection.Item(1)
Call oSketch.DimensionConstraints.AddOffset(olines(1), oLine2, oDimCoords(1), False, False)

oSketch.ExitEdit
End Sub

[#2]

Hi Rob,

I can help a little. oLine2 = oCollection.Item(1), is refering the your original set of lines, not the offset ones. Therefore you're trying to add a dimension from oLines(1) to oLines(1).

I'm afraid I haven't got any spare time at the moment to look at this further. Hope this gives you a starting point at least.

Kind regards

Jon.

[#3]

Hello Jon,

I realised that after I posted and should probably have deleted the post.

But, Is there any way to iterate the offset group and find the line that matches olines(1) (or oline(2) and so on)  so that I can add a dimension?

Thanks for you input.

Regards

Rob

[#4]

Hi,

When you said 'offset group', did you meant by 'oCollection' in the code? A collection can be iterated like below:

Dim oEachObj as Object

For Each oEachObj in oCollection

Next

If I misunderstood, please feel free to elaborate your question