Torsten Paul

The file size difference comes from ascii vs. binary STL. `admesh` flags 11 normal vectors as invalid which probably is unrelated to the binary STL, but you could try changing...

Oh, interesting. So maybe we have a bug in the (relatively new) binary export. Could you please also attach that working ASCII STL for comparison?

I can't reproduce the crash, but there's include files missing.

It would still be interesting to find the reason for the crash. There's some chance it's caused by #2847.

Please have a look at this FAQ entry: [Why is my imported STL file only showing up with F5 but not F6?](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/FAQ#Why_is_my_imported_STL_file_only_showing_up_with_F5_but_not_F6?) Specifically the MeshLab part for removing zero faces...

Blender does flag 28 zero faces with this model.

I could not get it working with MeshLab either, the following file is created with Blender by selecting the zero faces flagged by the (built-in add-on) 3d printing toolkit, removing...

All faces seem to have wrong winding order ([showing up in pink-ish color](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/FAQ#Why_is_my_model_showing_up_with_F5_but_not_F6?)). Also some of the faces seem to list points twice, I'm not sure that can generate valid...

This DXF extrudes fine for me with both release and nightly build on Linux using ``` difference() { linear_extrude(1) import("/tmp/jackson-silhouette.dxf"); translate([6, 3, 0]) cylinder(r = 2, h = 10, center...

Yep, I'm totally in support for that (which is why I was asking in that linked forum thread hoping for work going into this direction :smile:). However this will not...