The polyhedron is obtained on the basis of the operation of mathematical expansion (for more detail, No. 21 of the Magic Edges).
A small rhombicuboctahedron is a semi-regular convex polyhedron with two properties:
1. All faces are regular polygons of two types - triangle and square;
2. For any pair of vertices, there is a symmetry of the polyhedron (that is, a motion that translates the polyhedron into itself) that transforms one vertex to another.
Archimedean solids are semiregular polyhedra in the sense that their faces are regular polygons, but they are not the same, while the condition of one of the types of spatial symmetry (tetrahedral, octahedral or icosahedral) is preserved.
To assemble polyhedra, we can offer you ready-made patterns that are cut and folded.
To do this, you need to use the details of the set Magic Edges 21. In addition, in the release itself you will find information about the structure of the polyhedron.
Detailed assembly from Alexei Zhigulev (youtube channel - Origami)