2.12.1
Introduction
Welcome to the OMP400, Renishaw's ultra compact probe for small to medium machining centres that
sets new standards for reliability and robustness in the harshest of machine tool environments.
Successfully combining the miniaturisation of the popular OMP40 with the high accuracy of the
MP700, the OMP400 provides existing probe users with a simple upgrade to solid-state strain gauge
technology and all the associated benefits this brings:
• excellent 3D performance to allow probing of contoured surfaces;
• improved repeatability in all probing directions;
• low pre-travel variation to provide high accuracy, even when used with long styli;
• a proven ten-fold improvement in life (10 million triggers);
• the elimination of reseat failures;
• high resistance to machine tool vibration;
• a 360° optical ‘switch-on’ facility, allowing the probe to be turned on / reset in any position;
• resistance to shock and false triggering through the use of digital filtering;
• full compatibility with Renishaw’s industry proven optical transmission systems.
In addition to providing high accuracy measurement on your machine tool, the OMP400 also offers:
• Faster calibration:
On complex 3D parts, it is common to measure in several different directions. Each direction
of a standard mechanical probe must be calibrated to ensure that the pre-travel variation is
compensated in the measurement. Performing this calibration for every 3D direction can be
time-consuming.
The OMP400 has almost no pre-travel variation, so a single calibration value may be used for any
probing angle in 2D or 3D. This results in a vastly reduced calibration time. An additional benefit is a
corresponding reduction in errors introduced by environmental changes within the machine during
a long calibration cycle.
OMP400 basics
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