Exported STL is empty in Slic3r I am having trouble exporting meshes as .stl files from blender, when I import the exported mesh into Slic3r nothing shows up. However when I import an already existing model into blender and then export that as a .stl, it works fine in Slic3r

blend file

stl file
You need to triangulate the mesh. Select the mesh you wish to export and add a Triangulate Modifier to it. Then in the .stl export dialogue enable Apply Modifiers.


.stl imported to slic3r


GIF