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Model
5526A
Straightness Measurements
11
-6
7.
The laser
Head's
turret
ring
shou
ld
be
set
to
"OT
HER
"
during
insta
llati
on,
to take
advantage
of
the
stronges
t
possible
beam,
which this
seni ng
provides.
Description
1.
You
will init
ia
ll
y
position the
Optics
in their relative positions
as
described
in " IMPORTANT
CONS
IDER
AT
ION
S",
above, and at
the ncar
end of
travel.
2.
You
will
position the
la
se
r
Head so the
beam
strikes
the
Optics.
NOTE
Two separa te
procedures will be provided
for
step
"
1"
and step
"2"
above. One
procedure is
for
Vertica
l
axes;
the
o
ther
is
for
Hori zontal
axes.
3.
You will align the
lase
r
Head
to track the Optic's
progression
along the travel path, while
maintaining the beam's neaf*end
*of-Irave
l
position. You
will
do
this
by -
•
Reviewing
the
"
GUNS IGHT"
alignment method in
Secti on
15 o
f
this User's Gu
ide.
•
Keeping
th
e
beam
within the Alignment
rin
g on
th
e
Strai
ghtness
Retroreflector.
to
maintain
th
e
beam's near-end-of travel position,
and
-
•
Keeping a two-dot pattern
in lin
e wit
h th
e ju nction of
the
St raightness
Refl
ector's
mirrors, and
symmetrical
about
it
s
slolled openin
g,
to
mat ch
the
Optic's
travel.
4.
fi
nall
y, you
will
check you
r
alignment
to
insure that
"
Importan
t Considerations"
number
" 5"
and
number
"6" have
been met
.
Installing
Optics
For A
Ve rtical-Axis Measure me
nt
1.
Assemble the
Straightness
Reflector
and
its mount
as you wou
ld
for a measurement
al
ong a
ho
ri
zo
ntal
axis,
except attach
the post to the rear
of
the Adjustable Mount
(see
Figure
11-2).
Be
sure
the
Strai ghtn
ess
Reflector'
s slot is
oriented
away from
th
e
mounting
screws,
and
toward
where
the
Turnin
g
Mirror will be
mount
ed.
(This
is
opposite of
the way
t he
Reflector
was
mount
ed
for
Strai
ghtness
measurements
along
a Horizontal
axis,
described in
Section
10.
)
The Straightness
Reflector's
mirrors
should now be
ori
ented
" up"
.
NOTE
If
you
think
you will be
making
a Distance
or
Angular
measure-
ment
later,
establish
a
measurement axis
at a
height
above
the
table
that
wi
ll
allow
easy interchanging
of the
Optics.
To
do
this,
adjus
t
the
height
of
the
Reflector/
Turning
Mirror assembly to be
as low as possib le on
its Base.
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