A 3D model of a Octahedron, weaved with only 1 string and symmetry to illustrate how it forms a shape like a horse saddle in the center. For the Octahedron to be symmetrical it requires weaving from 4 different positions, rather than 3 like the Tetrahedron. Sorry for the poor quality photos. Observe how #Hyperbolic and #Parabolic geometries are formed within this #Euclidean #Geometry.
