HAMAR LASER STEALTH Series, General Training Manual

Page: 46 / 113

42
Measuring Rotary Axes
Checking A and B Rotary Axes and Tramming the Spindle
This section includes:
•
Rotation flatness of each
axis
•
Squareness and parallelism
to main axes
•
A-X (in Z) Parallelism
•
A-Y (in Z) Parallelism
• B-Z (in Y) Parallelism
• B-X (in Y) Parallelism
• Measuring the “tram”
or squareness of the A
spindle axis to X and Y
Please see Page 30 for details
on how the L-743 is set up on
the floor mill. In that section,
we checked the flatness,
straightness and squareness of the X, Y, W and Z axes. This section continues the alignment check
(assuming the laser is still bucked-in to the five points, as shown in Part 1) to show how to check the
rotary axes for alignment.
Checking the B-Axis Flatness of Rotation, B-Z (in Y) Parallelism and B-X (in Y)
Parallelism
1. To check the B rotation, move the target to one
of the corners of the table. Zero the display
and then rotate the table 90 degrees.
2. The display shows +.0024, indicating that the
table rose by .0024 as it rotated. Therefore, the
rotation plane is sloping up from left to right
relative to the main table (recall that the main
table was the reference for the horizontal red
laser plane).
A C\\