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STYLIMASTER KNOWLEDGE CENTER / CONFIGURATION

When to Use Star, Cylinder & Extended Styli

Compare common stylus configurations for multi-directional access, bores, recessed geometry and long-reach measurement.

Straight ball styli cover many inspection tasks, but component geometry can require different contact shapes or access directions. Specialized configurations help reach features that a simple straight stylus cannot measure efficiently.

KEY TAKEAWAYS
Use straight styli as a simple baseline where access allows.
Star configurations provide multiple probing directions from one assembly.
Cylinder styli can provide line-style contact geometry for suitable features.
Extensions provide reach but should be added only where the application requires them.

Straight styli

A straight stylus is often the simplest configuration for general dimensional inspection. It is a useful starting point when the feature can be reached directly.

Star styli

Star configurations provide contact directions around a central assembly and can reduce the need to repeatedly change orientation when several side-facing features must be reached.

Cylinder styli

Cylinder contacts provide a different contact geometry from a ball and can be useful for suitable edges, thin features or other measurement tasks where a cylindrical contact surface is required.

Extensions and adapters

Extensions increase reach and adapters connect different elements of a stylus assembly. Both should be treated as functional parts of the complete configuration, with attention to compatibility and rigidity.