Start with the obvious, but overlooked
Even with the best CMM or scanner:
- temperature changes
- airflow
- vibration
- lighting conditions
can impact results dramatically.
Engineer’s checklist
- Let machines stabilize before scanning.
- Avoid airflow directly over artifacts.
- Use stable fixtures.
- For CT calibration, a ruby plate for CT system provides a stable reference that helps isolate environmental effects from system errors.
Final thought
Environmental factors often dominate small measurement errors. Understanding and controlling them is as important as selecting the right calibration artifact.
