Stellated octahedron - Estrella Octángula

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Here's a 3D printable design for an octahedron - a geometric shape made up of two connected tetrahedra, sharing the same vertices as a cube. It can also be thought of as an octahedron with tetrahedral pyramids on every face. In geometry, an octahedron is a polyhedron that has eight distinct faces. A regular octahedron is a Platonic solid composed of eight equilateral triangles, where four triangles meet at each vertex, forming a highly symmetrical shape.