In mechanical engineering, compliant mechanisms are flexible mechanisms that transfer an input force or displacement to another point through elastic body deformation. These may be monolithic (single-piece) or jointless structures.
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This compliant mechanisms is a single-piece structure, there is no need of assembly. With no joints, “rubbing” between two parts or friction as seen at the joints of rigid body mechanisms is absent.
Compliant mechanisms are elastic.

Thomas Mercier explains the new Zenith Oscillator from WatchAdvisor on Vimeo.