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Enneahedron

The Herschel enneahedron is a non-regular polyhedron with 9 faces three of which are exact squares. In fact it is composed from just two unique polygons repeating. From one angle it has the contour of an equilateral triangle. It is a very interesting form that is very much beyond the usual world of rectangles, circles and radii. It is visually complex but it is still memorizable. The process of looking for a new form in design welcomes such unusual ingredients.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

Always pointing up

The important aspects of the enneahedron that make it so promising as a starting point for objects design are that it always sits very balanced on a surface with a point aiming up and that the triangular rhythm of it implies a good balance if there were three legs or contact points extended out of its points, edges or faces.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

The natural resting position for the enneahedron shape is very stable and planted.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

A square seemingly balancing on its tip.

The components

The volume is made up of clean polygons of two kinds – a kite and a square. There are overall very few angles that just repeat completing the closed form. The angles of the edges also seem useful when thinking of something like a chair or bar stool typology.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

Two kites and a square.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

Diamond-like transparency.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

The equilateral triangle contour.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch

Flat pattern of an enneahedron.

Interpretations

These are some first rough spatial tests of this form working with some reduction and slicing. It is all too heavy and monumental but very inspiring to test out smaller scales and component-based constructions rather than solid monolithic typologies.

Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch
Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch
Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch
Enneahedron – a study of a nine-sided polygonal volume – model – Chabera – Ch