Using multiple rubber bands connected to form a rubber band rope, repeatedly rubbing against the edges of an object under the action of a motor, with the aim of causing wear.
This bidirectional wear process highlights the interaction and resistance between force and material. On one hand, the edges of the harder object are gradually smoothed and worn down under the repeated stretching and friction caused by the rubber band rope. On the other hand, the soft and highly elastic rubber band rope also undergoes gradual wear during continuous stretching, friction, and deformation, manifesting as fiber breakage, thinning, and eventual rupture.
The antagonistic relationship between these two materials—one being the soft, fragile, and highly stretchable rubber band rope, and the other the hard, sharp edges of the object—forms a micro-scale yet expressive mechanical model. The essence of this model lies in how flexibility and rigidity, fragility and hardness, mutually consume and reshape each other in a sustained motion, ultimately reaching a dynamic balance or eventual decay.
It is worth noting that this process of opposition is not a simple “soft versus hard” conflict. Rather, within the dimensions of time and repetitive motion, the soft rubber band, relying on its extensible properties, continuously engages in contact and conflict with the hard edges. This process reveals a seemingly weak yet persistent collective force.