netgen - meshing problem


I had a problem doing surface meshing for the attached step file with fine or very fine mesh size.
Surface meshing is working ok with moderate, coarse, very coarse setting.

ps . tetmeshing fails with all settings but this is not my concern.

I’m using the latest version of netgen gui from here Index of /~mhochsteger/ngsolve/windows


Your help is much appreciated.


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