Renishaw OTS Installation Manual page 43

Symptom
Poor probe
repeatability and/or
accuracy
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Cause
Debris on part or stylus
Losoe probe mounting on
machine bed or loose stylus
Excessive machine vibration
Calibration out of date and/or
incorrect offsets
Calibration and probing speeds
not the same
Measurement occurs as stylus
leaves surface
Measurement occurs within
the machine's acceleration and
deceleration zone
Probing speed too high
Temperature variation causes
machine and workpiece
movement
Machine tool faulty
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Action
Clean tool and stylus
Check and tighten as
appropriate
Enable enhanced trigger filter
Eliminate vibrations
Review probing software
Review probing software
Review probing software
Review probing software and
probe filter settings
Perform simple repeatability
trials at various speeds
Minimise temperature changes
Perform health checks on
machine
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6.3