Hi Metin, thanks for sending the file.

A few n-gon areas are getting a really flat and thin triangle at their ends.

You can adjust some mesh settings to improve the mesh generation and avoid this – go to Options > General > “Edit .ini file” button, and set:

[Mesh Export]
<…>
CentroidTriangulation=y

It can also be a good idea to set a value for “Divide larger than” to force a more regular sized dicing up of the model which helps avoid having long skinny triangles extend very far in distance.

So for example I generated a file with centroid triangulation turned on, Output: Triangles only, Angle = 5, Divide larger than = 1, and there did not seem to be any problems in the output with those settings.

If you’re generating stuff for 3D printing output, something similar to those settings tends to help generate mesh results better suited for that.

- Michael