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CAD tip CAD tip # 6710:

Question CAD 
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Q - question

How to smooth a surface defined by individual 3DFaces?

A - answer You can smooth a surface defined by a group of 3D faces (3DFACE objects) but you have to convert it first to a 3D mesh.

If you get a series of 3D faces (terrain generator, import from another 3D software, et.c), you can convert it to a single "3D mesh" object in AutoCAD 2010. Then you can manipulate it, smooth it and interactively edit its 3D shape.

  1. First convert the selected 3D faces to individual surfaces - the CONVTOSURFACE command
  2. Then use the UNION command to join the surfaces together
  3. To retain the shape of the original faces, set the FACETERSMOOTHLEV variable to 0 (or perform this setting through the MESHOPTIONS command)
  4. And finally convert the unified surface to a 3D mesh object with the MESHSMOOTH command


See also the sample CAD video #74 (shot in the Czech version of AutoCAD 2010)
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See also:
Tip 13040:iLogic - display information about complexity of an Inventor part.
Tip 13038:How to explode 3D faces (3DFACE) into outline polyline?
Tip 13013:Converting a 3D mesh to a 3D solid in Fusion 360.
Tip 12237:UnfoldRS - unfold 3D surfaces to 2D in AutoCAD.
Tip 12064:3D offset of a surface.

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