| abstract |
A part made from metal or from alloy comprising inner cavities forming an inner volume of the part, thus defining a negative of the shape of said part, characterised in that said inner volume defines stacked plates, each plate being formed by repeating, rotating or translating one or more patterns, each pattern being formed from one zonohedron, and at least two volumes from zonohedra having a number of faces strictly greater than 6, or pyramids. |