An .ini file is the configuration file that Inventor uses for the export of either a DXF or DWG file.  These files are used in numerous downstream processes.

To configure the configuration file for a DXF flat pattern export right click on the flat pattern icon in the browser and select Save Copy As…

In the Save Copy As dialog box depending on which file type you select (DXF or DWG) is which configuration you will setup.

DXF .ini setup

DWG .ini setup

On the General tab you can set the File version of DXF you would like to export.

On the Layer tab you have the following options.

• Layer Name – The name of the layer displayed in the AutoCAD layer manager.  This layer manager can be modified as well.
• Object – The description of the object that is created on the layer that you are exporting into AutoCAD.
• On – Controls whether the object is exported or not.
• Appearance – Controls the colour of the exported object.  These can be customised using the RGB colour system.
• Line Type –  Controls the line type of the object that is exported.  These are the normal line types you find in AutoCAD eg continuous,  dashed, dotted etc.
• Line Weight – Controls the line weight (thickness) of the exported object.  The default is 0,00 mm.

The Geometry tab has the following options.

The spline simplification replaces a spline with straight lines which will deviate in small increments.

You can also merge the inner profiles from normal lines into polylines.  Rebase Geometry to 1st Quadrant positions the profile into the positive X and Y quadrant.

Trim Centrelines at Contour will trim bend centerlines where they cross holes which are situated over a bend.

Once all these settings are configured you can save and use it for exports in the future.