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Chapter 11 Diagonal Measurements
Installing and Aligning the Optics on the Machine
Installing and Aligning the Optics on the
Machine
All machines and measurement situations are not the same. Use the
instructions here as a guide to help you in your specific application.
Making notes and diagrams of how you set up the measurement hardware
can help you or someone else make identical setups on the same machine
or a similar one in the future, or can resolve any doubt about exactly what
you did.
The procedure given here can be used for either "near low to far high" or
"far low to near high" measurements. It aligns the laser measurement
beam to the programmed path actually traversed by the machine, such as
a body diagonal of the work zone volume. This technique allows you to
save and reuse the machine control program for future calibrations. If you
had to align the machine to the laser beam, you could not easily reuse the
same program, and you could not repeat the same measurement;
repeating the same measurement provides a valuable comparison for
assessing changes in machine performance.
The general procedure has these major steps:
1. Installing the measurement optics on the machine.
2. Installing and initially aligning the laser head.
3. Aligning the beam to the XY plane diagonal (azimuth angle, α) of the
measurement.
4. Aligning the beam to the elevation angle (β) of the measurement.
Measurements Reference Guide
11-21
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