This mechanism offers a simple solution wherein an axial movement of a grooved piece brings about a radial movement of rigid balls that grip and deform a pipe that is initially in a plastic state. The abrasive article of the invention is useful in the polishing of fiber optic connectors because the lubricating particulate additive allows the polishing rate of the softer glass fiber material to be slower than the polishing rate of the harder ceramic ferrule material. The method also includes switching a pitch of the first visible light communication image to a different pitch, and generating a second visible light communication image.