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CAD tip # 5800:

Question CAD
% platform category

Model import error: Coincident face_face_ints with different body vertices

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:

Explode the part to an AutoCAD 3D solid
Start AMSTITCH and select the solid
In the Surface Stitching dialog, under Stitch Type, select Custom Stitching
In the Operation area, select Heal gaps

ACADMDTACADM

* CAD

16.10.2007 15039×

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applies to: AutoCAD · MDT · AutoCAD Mechanical ·

See also:
Tip 12532:	Error when inserting standard part - Modeling: Failed to insert a part into assembly!
Tip 12330:	Inventor reports the error "Failed to create folder" or "Error creating the lock file lockfile.lck"
Tip 12248:	How to remove fillet or chamfer from a 3D solid?
Tip 11399:	Inventor reports an error: The referenced document cannot be resolved
Tip 11387:	How to edit large STL files in Fusion 360?

Selected tip: How to print on HP DesignJet in Windows XP?

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