Lightweight/Heavyweight Import Troubleshooting

The Troubleshooting page provides you with different solutions in case you encounter errors after a CAD File import.

Note: The solution numbering does mean the solutions have to be followed in order.

Solution 1: Approximation Measuring CAD Files Imported in Lightweight

After importing CAD files into Speos in Lightweight, if you measure an imported element, the measure value is approximated compared to the original CAD measure value, and depends on the Rendering quality option (SpaceClaim option).

Try modifying the Rendering quality option (SpaceClaim option):
  1. In Speos Options > Popular > Graphics performance options, modify the Rendering quality option.

For more information on the Rendering quality option, refer to the SpaceClaim documentation.

Solution 2: Errors with Lightweight Bodies

After importing a CAD project or after running a simulation with Lightweight bodies raising an error, we recommend you to:

  1. Right-click each geometry and select Check geometry to find potential issues.

    If some issues are found:

    1. Switch the geometry from Lightweight to Heavyweight if not yet done.

    2. Select Check geometry again.

      If there are still errors, delete the faulty faces.

    3. Use the Stitch and Inexact Edges tools from the Repair tab.
    4. Solidify the geometry with the Missing Faces tool from the Repair tab.

  2. Check the meshing and the Geometrical Distance Tolerance simulation options.

    Make sure that the Geometrical Distance Tolerance is much larger than the meshing tolerance: GDT >> sag(Body1) + sag(Body2)

  3. Check the meshing using Preview Meshing in a simulation or in a Local Meshing.

Solution 3: Errors with Imported CATIA File

A CATIA file imported into Speos may result in error. Errors may appear according to different scenarios. For instance:
  • When switching a body from Lightweight to Heavyweight
  • When running a HUD Optical Analysis using an imported CATIA file
  • An incorrect preview of a meshing
  • etc.

If above solution 2 has not corrected the issue, according to the configuration, you can try the following:

  1. In Speos Options > File Options > CATIA, activate or deactivate the option Trim control point outside face boundaries.

  2. Try importing the CATIA file again.

Solution 4: Bodies Split into Several Surfaces after Heavyweight Import or Toggle to Heavyweight

If a body is split in several surfaces after a Toggle to Heavyweight, or after an Heavyweight import, create a group (named selection) of all surfaces of the body to apply a material to this split body. This will create a VOP on Surface.

Note: Make sure not to add in the group a surface belonging to another body.