[GAMBIT] STL file import into Gambit

Ibo · May 8, 2009, 10:12

Hi

I’m trying to import an STL file into gambit. But I cannot get any volume out of it, and I'm stuck of what to do. Can anyone help me please

Kind Regards
Ibo

-mAx- · May 15, 2009, 06:48

Did you try with STEP?

Ibo · May 15, 2009, 07:00

Max

It's a STL file gained from CT scan data. how can I convert it to STEP file?

Many thanks
Ibo

PSYMN · May 17, 2009, 17:46

Is your faceted geometry closed? It will need to be closed. I don't know if GAMBIT has the required repair tools, but other ANSYS Meshing tools do.

Do you also have access to ICEM CFD? If so, you could repair the facets and mesh it there. ICEM CFD is very good for medical scan data...

Do you have access to TGrid? You may be able to do the repairs in TGrid also. Import it as a mesh and use the diagnostics to locate (and then repair) all the single and multiple edges, or import it as a faceted geometry and use the shrinkwrapper to get a nice surface mesh.

Once you close all the single (and remove multiple) edges from the model, it will be a nice volume model and GAMBIT should take it (or you could just finish up the volume meshing in ICEM CFD or TGrid).

-mAx- · May 18, 2009, 01:58

Quote:

Originally Posted by Ibo

Max

It's a STL file gained from CT scan data. how can I convert it to STEP file?

Many thanks
Ibo

I thought you was able to import STEP.
Anyway, I was already faced to same problem while importing STEP file.
The issue was, that my volume in ProE didn't have any mass properties.
Once you imported your STL file, did you try to stitch faces for creating a volume?

May 8, 2009, 10:12	STL file import into Gambit	#1
Ibo New Member Ibo Join Date: May 2009 Posts: 8 Rep Power: 2	Hi I’m trying to import an STL file into gambit. But I cannot get any volume out of it, and I'm stuck of what to do. Can anyone help me please Kind Regards Ibo

May 15, 2009, 06:48		#2
-mAx- Senior Member Join Date: Mar 2009 Location: Switzerland Posts: 545 Rep Power: 6	Did you try with STEP? __________________ In memory of my friend Hervé: CFD engineer & freerider

May 17, 2009, 17:46	Options?	#4
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor MI Posts: 477 Rep Power: 6	Is your faceted geometry closed? It will need to be closed. I don't know if GAMBIT has the required repair tools, but other ANSYS Meshing tools do. Do you also have access to ICEM CFD? If so, you could repair the facets and mesh it there. ICEM CFD is very good for medical scan data... Do you have access to TGrid? You may be able to do the repairs in TGrid also. Import it as a mesh and use the diagnostics to locate (and then repair) all the single and multiple edges, or import it as a faceted geometry and use the shrinkwrapper to get a nice surface mesh. Once you close all the single (and remove multiple) edges from the model, it will be a nice volume model and GAMBIT should take it (or you could just finish up the volume meshing in ICEM CFD or TGrid).

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May 15, 2009, 07:00		#3
Ibo New Member Ibo Join Date: May 2009 Posts: 8 Rep Power: 2	Max It's a STL file gained from CT scan data. how can I convert it to STEP file? Many thanks Ibo