Charmilles E110-D10 - Orientation of the Reticle

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-

75

-

ORIENTATION OF

THE

RETICLE

Making

use

of

the

same

non-hardened

steel

plate,

proceed

as

follows

:

l.

Check

the

parallelism

of

one

of

the

edges

of

the

plate

in

relation

to

the

longitudinal

travel

of

the

table

(fig.

2

a).

For

this,

fasten

an

indicator

by

means

of

a

support

onto

the

chuck,

in

such

manner

that

its

tip

bears

against

the

lateral

surface

chosen.

Displace

the

longitudinal

slide

and

check

that

the

hand

of

the

indicator

remains

still

for

the

full

travel

of

the

plate.

If

such

is

not

the

case,

adjust

the

plate

and

again

check

for

parallelism

by

means

of

the

indicator.

2.

Fasten

the

polished

plate

firmly

onto

the

table.

3.

Fasten

the

microscope

onto

the

chuck

(fig.

2

b).

4.

Bring

the

reference

edge

chosen

on

the

plate

into

the

field

of

view

of

the

microscope

eye-piece

and

focus

properly

as

described

under

"CENTERING

OF

THE

RETICLE",

point

9.

5.

Move

the

table

to

bring

the

reference

edg~

into

close

proximity

of

the

reticle

cross-wires.

6.

If

the

edge

is

perfectly

parallel

to

the

longitudinal

coordinate

of

the

reticle

during

the

full

longitudinal

travel

of

the

plate,

then

the

orientation

of

the

reticle

is

correct.

If

such

is

not

the

case,

(fig.

2 c &

d),

loosen

the

locking

screws

of

the

eye-piece

and

rotate

the

latter

to

bring

one

of

the

cross-wires

to

coincide

with

the

reference

edge

of

the

plate;

then

tighten

the

screws.

7.

Recheck

the

centering

of

the

reticle

to

make

sure

that

it

has

not

been

disturbed

by

adjustment

of

the

or~entation;

should

this

be

the

case,

repeat

the

above

adjustments

until

both

settings

are

correct.

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