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The company’s ultra-light CMM star probes are designed with removable styli. Sometimes tactile CMMs use star probes that often have five ruby ball styli to access virtually all exposed sides of a workpiece being measured. In traditional star probes, if just one ruby ball stylus is damaged, the entire star probe must be replaced, the company says. The company’s star probe holders, or hubs, are designed to allow individual ruby ball styli to be removed and replaced. They hold one to five styli of virtually any length or ball diameter.

The hubs, made of solid stainless steel, feature four set screws that hold unthreaded styli in place. Unthreaded styli with stem diameters of 0.028" (0.7 mm), 0.039" (1 mm) and 0.059" (1.5 mm) can be used.

The low-weight star probes can be used on virtually any touch probe using M3 threaded components. Fully assembled, the star probes weigh 3 to 5 grams depending on the number of styli installed.