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

why stl write 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.

[DGM]

My guess:

• Using an ASCII encoding instead of binary
• Having a ton of geometry
• Having a ton of redundant geometry

If we assume about 200B per triangle for an ASCII STL, that's still 32.5 million faces. That said, stlwrite() encodes as binary by default, so if we assume about 50B per triangle for a binary STL, that's 130 million faces.

Either way you cut it, that's a lot of geometry. My guess is "all of the above".