Here's the mesh: mesh.zip Put it in the BEPUphysicsDemosContent folder and change this line in the CharacterPlaygroundDemo: var staticMesh = new StaticMesh(staticTriangleVertices, staticTriangleIndices, new AffineTransform( new Vector3(1f, 1f, 1f) , Quaternion.Identity, new Vector3(0, 0, 0))); Then ...