Chapter 7  Squareness Measurements in a Vertical Plane
Mounting and Aligning Optics for the Second Axis Measurement
Measurements Reference Guide 7-13
Mounting and Aligning Optics for the Second 
Axis Measurement
This section explains how to mount and align the optics for the second axis 
measurement.
Mounting the optics
To mount the optics for the second axis measurement, follow these steps:
1 Move the moveable part of the machine to its start position. 
2 Remove the current interferometer assembly from the spindle and 
disassemble the assembly.
3 Attach the turning mirror base to the optical square using the turning 
mirror attachment screw (Figure 7-7).