Chapter 6 Squareness Measurements in a Horizontal Plane
Mounting and Aligning Optics for the Second Axis Measurement
6-24 Measurements Reference Guide
Mounting and Aligning Optics for the Second
Axis Measurement
Use this procedure to mount and align optics for machines with a
horizontal or a vertical spindle.
The second axis measurement is simply a horizontal straightness
measurement along the axis on which you previously mounted the
reflector.
CAUTION Do not move or adjust the reflector while preparing for or making the
second axis measurement. The reflector is the reference for the
squareness measurement. If you move the reflector, you lose your
reference.
To mount and align optics for the second axis measurement, follow these
steps:
1 Remove the optical square and, for machines with a horizontal spindle,
the interferometer assembly.
Do not move or adjust the reflector.
2 Move the laser head so it is oriented along the second axis (Figure 6-12 or
6-13).
3 Adjust the laser head so the beam is centered between the reflector’s
midpoint notches.
4 Follow the instructions in “Mounting and Aligning Optics for X-Axis or
Y-Axis Measurements” in Chapter 5.
CAUTION Do not try to align the laser beam to the travel path of the second axis as
instructed at the end of “Mounting and Aligning Optics for X-Axis or
Y-Axis Measurements” in Chapter 5. If you do, the software will not be
able to calculate squareness between the two axes. Instead, go directly to
“Checking the Alignment for Beam Strength for the First Axis
Measurement” in this chapter.
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