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Chapter 7 Squareness Measurements in a Vertical Plane
Mounting and Aligning Optics for the Second Axis Measurement
c. While moving the table back and forth along the horizontal axis,
sweep the side of the optical square.
d. Turn the optical square left or right until it is parallel to the direction
of travel.
e. Return the table to its start position.
f.
Remove the indicator and remount the interferometer in the spindle.
g. Repeat steps 6 through 8 in the previous section, "Mounting the
optics."
8
Remove the gauge block.
9
Secure the optical square to the machine using a clamp or similar device.
When using a clamp to secure the optical square, cover as much of its base
as possible with the clamp so the attachment is secure.
10
Gently tap the reflector assembly to ensure that its mounting is rigid and
free of vibration.
If you feel any vibration, tighten all connections in the mounting.
11
Translate the laser head horizontally until the beam strikes the center of
the turning mirror.
If you cannot see the beam, hold a piece of paper in front of the turning
mirror.
Your goal in steps 12 through 16 is to make the beam from the turning
mirror pass through the alignment ring on the retroreflector, through the
interferometer, and through the center of the optical square's top slot.
12
Using the adjusting screws on the turning mirror's base (Figure 5-14),
orient the mirror so that the beam passes through the alignment ring on
the retroreflector (Figure 5-15).
13
Remove the interferometer from the retroreflector.
Measurements Reference Guide
7-19
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