Acting as a kinetic skeleton, Hoberman rings give the pendant the ability to expand over a 300% dynamic range. Each ring is driven by a stepper motor and acts independently of the other rings of the stack. This uniquely controllable movement grants the pendant a range of kinetic animations like slow breathing, pulsing, or wave propagation.
Just as the pendant’s illumination reacts to its environment, the pendant’s kinetics are also responsive to sound.
![image](/images/32ManualCollapse_singleFrame_1000px.png)
Building on basic Hoberman ring design, this linkage profile produces the maximum linkage footprint that avoids impinging on its neighbor.
Attaching the Hoberman ring to a gear train transforms the simple rotation of the stepper motor into a sinusoidal combination of expansion and torsion. The animation above illustrates the stack’s wave propagation.
![image](/images/LinkageDriveAssemblyDrawing_1000px.png)