Extendable Tower

Two bars are hinged together at their midpoints to form scissors. You can bend the bars at the hinge to produce a cross similar to the Hoberman linkage. Such scissors are arranged in a circle and similar circles are stacked to make an extendable tower. If the bars connecting the base nodes are shortened, then the tower is extended.


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N. De Temmerman, "Design and Analysis of Deployable Bar Structures for Mobile Architectural Applications", PhD thesis, Vrije Universiteit Brussel, 2007.


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