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Tensegrity sphere Spherical shaped construction with 4.6 m diameter, consisting of 30 bars and 30 ropes where no rod touches the other. The 2,8 m long 60 x 4 mm steel rods are held in their position only by 10 mm thick and 3 m long steel ropes. Each rod is fitted with specially developed, rotable cable fastenings and a welded fasteners for the steel ropes. The ropes are mechanically pre-streched to their final length but can also be further adjusted. The 120 rodes of the rope fastenings allow the complex spherical shape, whose dimensions and elongations were calculated in several rounds with the use of the 3D program. The technical principle of the rod-rope construction called "Tensegrity" originates from the American designer, visionary and philosopher Buckminster Fuller (1895 -1983), who is still considered one of the most important developers of geodetic domes. The extraordinary thing about this principle is the separation or combination of solid and flexible materials such as rods and ropes and thus the creation of a completely new design technique. The forms are variable, so that with this technique each object receives an individual character and gains complexity in its mathematical structure.
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