3rd Party IGES Export Options
Altair HyperMesh®
In the Files menu, select the export and IGES toggles and set the following options:
  • no planes
  • outer loop mandatory
  • groups


    • SDRC I-DEAS®
    Under the File menu, select the Export sub-menu and select IGES.  Select the Surfaces to export as opposed to the Part.  Define a SolidMesh flavor with the following options (select Edit Flavor):
  • Assemblies: Explode to a Single IGES Part
  • Choose Geometry Types to Export: on

    • Select the Types to Export... button and select the following:

  • Points: off
  • Groups: on
  • Curves/Edges: on
      • Convert type to: 126 NURBS
      Convert Arcs to Conics: off
  • Surfaces: on
      • Convert trimmed surface type: 144:0 Trimmed with 3D Model and 2D Param Space Curves
      Convert to base surface type: 128:0 Non-Uniform Rational Bspline (NURBS)
      Trim curves convert to: 126:0 Non-Uniform Rational Bspline (NURBS)
  • Solids: off
  • Reference Geometry: off
  • Maximum number of points per IGES Polyline: default
  • Chordal Deviation Tolerance: default
  • Maximum Degree of Curves and Surfaces: default


    • Autodesk Mechanical Desktop®
    The default settings generally work very well.  However, in some cases, changing the default settings may be necessary.  Under the File menu, select the Export sub-menu and select IGES...  Select the Options button to bring up the IGESOUT Options dialog box.  Set the following options for each tab:

    Geometry Tab

  • 3D Solid/Mechanical Desktop Part Mapping: Surfaces
  • Trimmed Surface Mapping: Trimmed Surface (144)
  • DeskTop Augmented Line Mapping: Copious Data 3-tuples
  • Map Point Entities: No
  • Map Ray and XLINE objects to 110:1,2 (Unbounded Line Forms): No

    • Annotation Tab

  • All off

    • IDP Mapping Tab

  • Create AutoCAD IPD's in IGES: No

    • Structure Tab

  • Map Layer Name: No Mapping
  • Drawing Entity (404): Map Model Only
  • View Mapping: All off
  • Map XREFS: No Mapping
  • Map Groups: Unordered (402:7)

    • Misc Tab

  • All off


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