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The configuration space of planar spidery linkages

Jun O'Hara
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Abstract

The configuration space of the mechanism of a planar robot is studied. We consider a robot which has $n$ arms such that each arm is of length 1+1 and has a rotational joint in the middle, and that the endpoint of the $k$-th arm is fixed to $Re^{\frac{2(k-1)π}ni}$. Generically, the configuration space is diffeomorphic to an orientable closed surface. Its genus is given by a topological way and a Morse theoretical way. The homeomorphism types of it when it is singular is also given.

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Jun O'Hara. 2006-06-25. The configuration space of planar spidery linkages. https://arxiv.org/abs/math/0505462

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