Chapter 5  Straightness Measurements
Making Vertical Axis Straightness Measurements
Measurements Reference Guide 5-17
You are now ready to align the laser beam to the machine’s travel path. 
Go directly to “Aligning the Laser Beam to the Machine’s Travel Path” 
later in this chapter.
Making Vertical Axis Straightness 
Measurements
If you have an optical square, you can make a vertical axis straightness 
measurement as part of a squareness measurement. Follow the 
instructions in Chapter 7, “Squareness Measurements in a Vertical 
Plane.”
If you do not have an optical square, refer to Figures 5-11 through 5-16 for 
guidance in optical setup and hardware assembly. Adapt the procedure in 
“Mounting and Aligning Optics for X-Axis or Y-Axis Measurements” as 
required.