Importing IGES files

It is helpful to set the export settings of your CAD system for proper import.

• SolidWorks settings
• AutoCAD settings
• For other systems, try and ensure that 3D surfaces are exported as trimmed NURBS.

If you are working with Pro/Engineer from Parametric Technology Corporation, set the following IGES import options:

• Physically dependent - OFF
• Logically dependent - ON
• Both physically and logically dependent - ON

FeatureCAM can read the following IGES entities.

Entity	IGES Description	FM Object Type
100	Circular Arc	Circle and arc
102	Composite Curve	Curve
104	Conic Arc	Curve
106	Copious Data	Line
108	Plane	Not supported
110	Line	Line, multiple lines
112	Parametric Spline Curve	Curve
114	Parametric Spline Surface	Surface
116	Point	Point
118	Ruled Surface	Surface
120	Surface of Revolution	Surface
122	Tabulated Cylinder	Surface
126	Rational B Spline Curve	Curve
128	Rational B Spline Surface	Surface
141	Boundary	Curve
142	Curve on Parametric Surface	Curve
143	Bounded Surface	Surface
144	Trimmed Surface	Surface
186	Brep	Solid with Solid Modeling, Surfaces without Solid Modeling
304	Line Font Definition	Not supported
408	Subfigure Instance	Geometry, curves, or surfaces
410	View	Not supported
502	Vertex	Point
504	Edge	Curve
508	Loop	Curve
510	Face	Surface without Solid Modeling
514	Shell	Surfaces without Solid Modeling, Solid with Solid Modeling

Dimension entities from IGES files, such as labels, notes, and arrows are also imported. All other IGES entities are ignored.

Look in the status bar and the log file for feedback about the IGES file import. After importing a *.iges file, an alert displays The IGES file has been imported successfully or The file example.iges is corrupted and cannot be imported. A log file is created that details the IGES import process. The name of this file is specified in the File > Import Options page of the FeatureCAM Options dialog.