STL File Problem: Solving in MSC Marc

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SUMMARY

The discussion centers on importing an STL file into MSC Marc and the challenges of setting it as a rigid body. Users report that MSC Marc does not recognize the STL file as a valid surface, prompting suggestions to convert the surface to NURBS format. Key troubleshooting steps include ensuring that all normals are correctly oriented and verifying the integrity of faces and vertices within the STL file. Manual editing of points and lines may be necessary to resolve these issues.

PREREQUISITES
  • Familiarity with MSC Marc software
  • Understanding of STL file format and its properties
  • Knowledge of NURBS modeling concepts
  • Basic skills in 3D geometry manipulation
NEXT STEPS
  • Research how to convert STL files to NURBS in MSC Marc
  • Learn techniques for checking and correcting normals in 3D models
  • Explore tools for editing STL files, such as MeshLab or Blender
  • Investigate best practices for preparing surfaces for finite element analysis in MSC Marc
USEFUL FOR

This discussion is beneficial for engineers, CAD designers, and simulation analysts who work with MSC Marc and need to troubleshoot STL file imports for rigid body simulations.

graba
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Hello guys,
I need help from you one more time. I have imported a STL file to marc and right now I have a problem. I would like to set this STL file as a rigid body but MSC Marc won't accept it as a surface (but it is a surface file). Do you have any clue how to solve it? Maybe this surface should be changed to NURBS?
 
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i don't know about marc, but i often work with STL files. one thing to be sure about is that all the normals are facing the way you intend. then check the faces and vertices to check that it looks alright. you may need to manually edit these points/lines.
 
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