why stl wrie conversion take so long with 6.5 GB stl file size? how to reduce stl file size during stlwrite?

why stl wrie conversion take so long with 6.5 GB stl file size? how to reduce stl file size during stlwrite?

[Steven Lord]

It's going to be impossible to give a good answer to that without knowing more about the triangulation you're trying to write to the file. So a not-so-good answer is: your triangulation probably contains a very large number of triangles.

[Rik]

You've probably seen this link a number of times. Why aren't you following its advice? You are wasting time (ours and your own), since you're question is impossible to answer without some clarification about the context.