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CAD tip CAD tip # 5800:

Question CAD 
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Q - question

Model import error: Coincident face_face_ints with different body vertices

A - answer After a SAT or STEP import (ACISIN, STEPIN) of a 3D model, AutoCAD displays the message:
Failed to calculate silhouettes of a face.
Modeling Operation Error:
Coincident face_face_ints with different body vertices.
This is one of the error messages of the ACIS/Shapemanager modeller. There are probably overlapping faces, small (very thin) wedges or gaps in the imported 3D model. Try to locate the complaining body and fix it in the source application (e.g. Inventor).

You can also use the AMSTITCH function in Mechanical Desktop:

  1. Explode the part to an AutoCAD 3D solid
  2. Start AMSTITCH and select the solid
  3. In the Surface Stitching dialog, under Stitch Type, select Custom Stitching
  4. In the Operation area, select Heal gaps
100% *  CAD 
16.10.2007    11856x  
Comments   Tell a friend
applies to: AutoCAD · MDT · AutoCAD Mechanical ·

See also:
Tip 10612:Revit error: Unable to open because of unresolved pointer references​
Tip 10537:Conversion of Mesh to T-Spline fails in Fusion360.
Tip 10363:Error: Autodesk Translators has stopped working.
Tip 9887:Inventor crashes when opening larger 3D models.
Tip 9546:Error 16390 when reading a DWFx into Navisworks.

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