Coordinate Measuring Machines (CMMs)

What this topic covers

3D coordinate measurement for dimensional verification.

Core testing ideas

CMMs collect coordinates using tactile or optical sensing systems.

Probing strategy, fixturing and alignment influence results.

Machine calibration and environmental stability are important for high-precision work.

Measurement and method limits

Multiple methods are often complementary because dimensional, surface and internal conditions are different.

Evidence and traceability

Acceptance and qualification requirements should come from the governing product or engineering specification.

Using the result

Testing and inspection evidence should remain connected to material, process and product history.