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AutoCAD Inventor vs. CFX (ICEMCFD)

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Old   January 16, 2007, 17:58
Default AutoCAD Inventor vs. CFX (ICEMCFD)
  #1
Mark Humphrey
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I'm having issues with putting standard .step files into the ICEMCFD mesher (ver 5.7.1 and 10.0).

Basically, I have an assembly with which I derive the "fluid" part from. That is saved to .stp format and I then import it into the ICEMCFD enviroment. What was a nice fluid block turns out to be just a circle, or a similar geometry minus a few surfaces.

I feel that there is something I'm not checking, or some arbitrary value in the tolerance that is causing this.

Of note, I can import created parts (parts I sketch/extrude) without much fuss, hence I feel the problem may be with how Inventor turns a derived part into a .stp. Any help would be appreciated.

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Old   January 16, 2007, 18:23
Default Re: AutoCAD Inventor vs. CFX (ICEMCFD)
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myron
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Try importing the AutoCAD .dwg file.
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Old   January 16, 2007, 18:33
Default Re: AutoCAD Inventor vs. CFX (ICEMCFD)
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Mark Humphrey
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I gave it a running try but no luck. .dwg's are 2-D or have they gotten fancy enough to go 3-D? I'm trying to import the 3-D structure and Inventor won't allow it (IGES,STEP,DEF, etc.)

I'll see if I can throw it into AutoCAD 2006 (not inventor) to see if I can catch the problem (didn't think of it before). Thanks!
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Old   January 16, 2007, 20:37
Default Re: AutoCAD Inventor vs. CFX (ICEMCFD)
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Mark Humphrey
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Thanks for the help. I was able to finally get the geometry to work with a little tweaking of the tolerances and file manipulation.

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