AutoCAD file import enGrid / Netgen

deniggo · August 4, 2010, 09:03

Hello,

I’m trying to import an AutoCAD 2009 geometry into Netgen or enGrid for volume meshing.
The exported .stl file of AutoCAD consists already of very coarse surface-polygons, which I can not delete or refine in enGrid. Netgen doesn’t even show the .stl file (white window).

How can I import AutoCAD files in meshing-software as a whole simple block?

Is it possible to import (closed) polyline into meshing software and use extrusion for further volume modelling?

Thanks!

ogloth · August 4, 2010, 10:38

Hi,

usually a water-tight STL file should import well into enGrid. Having said that: Sometimes it doesn't and it can be beneficial to first import into a different software (e.g. ParaView or Blender) and then export in a format that enGrid digests better. If you could post an example of what you are trying to import I can offer to have a look at it (preferably directly on the enGrid forum: http://engits.eu/forum).

Btw, Which version of enGrid are you using?

Regards,
Oliver

August 4, 2010, 09:03	AutoCAD file import enGrid / Netgen	#1
deniggo Member Nico T Join Date: Aug 2010 Location: Leipzig, Germany Posts: 39 Rep Power: 16	Hello, I’m trying to import an AutoCAD 2009 geometry into Netgen or enGrid for volume meshing. The exported .stl file of AutoCAD consists already of very coarse surface-polygons, which I can not delete or refine in enGrid. Netgen doesn’t even show the .stl file (white window). How can I import AutoCAD files in meshing-software as a whole simple block? Is it possible to import (closed) polyline into meshing software and use extrusion for further volume modelling? Thanks!

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August 4, 2010, 10:38		#2
ogloth Senior Member Oliver Gloth Join Date: Mar 2009 Location: Todtnau, Germany Posts: 121 Rep Power: 17	Hi, usually a water-tight STL file should import well into enGrid. Having said that: Sometimes it doesn't and it can be beneficial to first import into a different software (e.g. ParaView or Blender) and then export in a format that enGrid digests better. If you could post an example of what you are trying to import I can offer to have a look at it (preferably directly on the enGrid forum: http://engits.eu/forum). Btw, Which version of enGrid are you using? Regards, Oliver