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CAD tip # 7093:

Question CAD
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How to convert a polygon or a region to 3Dfaces.

If you want cover a closed polyline or a region with a "blanket" of 3dfaces, you can use the 3D modeling functions available in AutoCAD since version 2010.

Any closed polyline or a region can be converted to a Mesh object (2D). Just use the MESHSMOOTH command. If your polyline border contains arc segments, you may want to refine the resulting mesh with the MESHREFINE command. This will increase the density of the small patches and more precisely fill in the arcs.

The mesh can be easily converted to 3d face entities (3DFACE) just by exploding - the EXPLODE command.

Mesh

You can also use similar method to convert 3Dsolids to 3Dfaces.

ACAD2012ACAD2010ADT2010

* CAD

2.12.2009 23790×

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applies to: AutoCAD 2012 · AutoCAD 2010 · AutoCAD Architecture 2010 ·

See also:
Tip 11387:	How to edit large STL files in Fusion 360?
Tip 11337:	Convert 3D PDF files back to CAD models.
Tip 11311:	Importing STL files directly into AutoCAD.
Tip 11076:	Reading 3D point matrix from a CSV file.
Tip 11054:	Difference volume (3D solid) between two TIN surfaces (sets of coordinates)

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