IGES File Save As Options reference

Specifies the options for exporting Autodesk Inventor solid geometry and surface data to IGES format.

Results of exporting to IGES are:

• Part geometry and base surfaces are assigned to separate layers.
• Only visible surfaces in part modeling are exported.

Access:

In the Save Copy As dialog box: Set the Save as type to IGES files. Click Options.

Output Solids As	Specifies if Autodesk Inventor data is translated to a Solid, a set of Surfaces that represent the faces of a solid, or Wireframe. Accept the default (solids) or click the arrow and select surfaces or wireframe.
Surface Type	When exporting to surfaces, specifies the surface type. IGES 143 - Bounded Surface is the Default. It is mathematically more accurate than the older parametric surface type. IGES 144 - Trimmed Surface is available for systems that do not recognize bounded surfaces, or if conversion problems occur.
Solid Face Type	When exporting to solids, specifies the solid face type. Analytic faces retain their analytic characteristics. Supported face types are Planar, Cylindrical, Conical, Spherical, and Toroidal. NURBS faces can be selected if faces do not meet analytical characteristics.
Tolerance	Defines the export tolerance for the IGES file. The accepted range for the tolerance value is from 0.00001 cm to 0.001 cm. A smaller tolerance creates more accurate geometry approximations and larger file size.
Include Sketches	Select to include visible 2D and 3D sketches in the exported file. Each sketch is mapped to a layer. The layer names correspond to the sketch names.