Use of bounding box of rotated 3D convex hull for out of print volume detection

xs/src/libslic3r/Format/3mf.cpp

@@ -1491,6 +1491,7 @@ namespace Slic3r {
 
             stl_get_size(&stl);
             volume->mesh.repair();
+            volume->calculate_convex_hull();
 
             // apply volume's name and config data
             for (const Metadata& metadata : volume_data.metadata)