Hommel-Etamic introduces the Roundscan, a scanning system that combines automatic measurement of form, cylindricity and roughness characteristics in one measuring instrument. The system is designed for ergonomic use by featuring a rotating and height-adjustable work area. It can measure very small parts such as injector components or valves, as well as large, heavy workpieces such as disc brakes, hydraulic components or crank shafts. The system can handle parts as large as 540 mm in diameter, 900 mm high and weighing as much as 100 kg. The measuring axes are equipped with high-precision, low-friction guides so that profile and waviness parameters can be evaluated in addition to roughness parameters. A useful combination, for example, is determining roundness and straightness as well as the Rz value and the linear free forms in connecting rod diameters, the company says. According to the builder, an additional advantage is the large measuring stroke of the scanning system (±1,500 µm), which possesses excellent linearity over its whole measuring range without sacrificing resolution. This enables measurements on irregular workpiece geometries. The scanning system contains a dual-tip scanning system that permits form and roughness to be measured in one pass. It electronically ensures correct measurement force of the probe tip on the workpiece surface.