# Check Integrity blender script [CheckIntegrity](https://yorik.uncreated.net/archive/scripts/blender24/checkintegrity.py) This script checks the active mesh for open or non-manifold edges. If all edges have exactly 2 faces, this means we have a perfectly closed manifold mesh. Otherwise, the 1-face or 3-face edges are selected, so you can fix them easily... Useful if you need well-closed meshes, for example when calculating volumes.