Sargon XTG300 series User manual
Always
there
for
yoU!TM
800-9-SARGON Sa
gonTM
8954
Lurline
Ave, .,
Chatsworth,
CA 91311 ., USA TheM I sure 01
Quality
818882-6904"
Fax: 818 718-8206
I -r. tI
XTG300 series installs,
'iQfJ'
guiI!Je
'
I I
if~
I v10/14/98-LD
I. INTRODUCTION
Apparently
most
installers
only
read
the
installation
instructions
when
they
run
into
trouble.
For
this
reason
the
most
important
points-the
ones
most
likely
to
result in
damage-have
been
put
in section II. READ THIS
BEFORE
STARTING.
Installers
are
strongly
advised
to
read section II
before
attempting
to
install miniscales.
It
is
important
to
properly
install
the
miniscales,
as
described
In
this
manual.
Failure
to
do
so
may
result
in
severe
damaqe
to
the
miniscales.
WARRANTY
IDOES
NOT
COVER
FAULTY
INSTALLATION!
CAUTION
If
the
system was
mounted
by
the
supplier
before
being
shipped
and
it
does
not
work
upon
arrival:
1. Check
for
any
damage
which
may
have occurred
during
shipment.
2.
Contact
the
freight
company
as soon as possible
to
report
any
potential
damage.
miniscale
components
1. Spar.
2. Encoder
box
which
travels
along
the
spar.
3. Cable
for
power
to
miniscale and
output
from
miniscale.
4.
Connector
to
digital
readout.
5. Endcaps
5 15
i.;
@
(§3""'oo
:Jlli)
""""'~
In US'--
~
r
-r-=
==H==
2 3 I L...
4
figlue
1.
rniniscale
components
II.
READ THIS SECTION
EtEFORE
STARTING
• Miniscales
contain
precision
electronic
and
glass
components.
Do
not
drop,
bend
or
hammer
on
the
miniscales.
•
Before
beginning
installation,
verify
that
your
miniscales have
the
correct
travel
The
overall
miniscale
length
is
notJhe
travel.
The
travel
is
specified
by
the
part
number.
Example:
An
XT350-12 miniscale has a 12 inch
travel;
the
overall
length
would
be 15
inches
(overall
physical
length
=
measuring
length
-I- 3 inches). See Figure 1.5.
~----------ML
I~
-I-
3
inches
(-I- 76 mm)
..
-L--------r;~::::c::======::::c::===;~:==-------
~
figure
1.5
miniscale
travel
(measuring
length)
•
The
miniscale
may
be
mounted
to
a
machined
surface
provided
that
the
surface is
parallel
to
the
table
movement.
• Do
not
mount
the
spar
directly
to
an
uneven
surface. Use a
backplate
if
the
surface is
not
an
accurately
machined
surface. See Figure 7
for
example.
• The
machine
must
have mechanical stops
that
prevent
over
travel.
Mount
stops
if
necessary. Do
not
remove
stops
after
miniscale is
installed.
If
table
travel
is
greater
than
the
specified miniscale
travel,
contact
your
dealer
to
obtain
the
correct
travel
length
miniscale.
• Do
not
offset
the
miniscale
(extra
travel
on
one
end,
insufficient
travel
on
the
other
end).
Make
sure
you
have
the
correct
travel
miniscale,
AN
0 also
make
sure
that
the
following
relative
positions
are
the
same (i.e.,
center
positions, OR end positions).
Namely:
1 The
table
with
respect
to
machine
travel
2. The
encoder
box
with
respect
to
the
scale's.
travel
• Do
not
drill
holes
at
an
angle.
Do
not
improperly
space holes. These errors
may
cause
bowing
or
sagging
of
the
miniscale. See Figure 2.
2
Mounting
holes
are
normally
transfer
punched
to
locate
the
proper
hole
location.
Since
these
holes
are
hand
drilled,
It
Is
advisable
to
begin
by
drilling
a
smaller
guide
hole
to
prevent
the
larger
drill
bit
from
"walking."
CAUTION
drill is centered drill has "walked"
figure
2.
improper
drilling
• Use a
micrometer
or
dial
indicator
to
indicate
the
front
and
the
top
of
the
spar surface"
The spar
must
be
parallel
to
the
table
travel
to
within
0.005 inch (0.13
mm),
in
both
planes,
over
the
entire
travel
of
the
miniscale.
•
Adjust
encoder
box
set screws
before
tightening
the
mounting
screws. The
encoder
box
must
be
centered
relative
to
the
spar. See Figure 3. Ensure
that
the
encoder
box
is
properly
positioned
and
secured
until
installation
is
complete.
figure
3.
encoder
box
mounting
o Do
not
cock
the
encoder
box. Parallelism
must
be
maintained.
1 See Figure 4.
set
screws
mounting
screws
1
st
2nd
o
o 0
t
figure
4.
examples
of
cocked
encoder
boxes
3
•
After
installation,
verify
that
it
is
not
possible
to
overtravel
the
miniscale. See Figure 5.
Overtraveling
the
encoder
box
will
result
In
severe
damage.
the
miniscale
does
not
have
"stops."
Make
sure
you
have
the
correct
miniscale
travel.
Mount
stops
if
necessary.
~£:::um
lravel,
left
side
CAUTION
.~
maximum
travel, right side
figure
s.
maximum
miniscale
travel
• Do
not
leave miniscale cables
hanging
loose. They
may
be
caught
and
pulled
out.
Secure
the
cables
with
tie-wraps
and anchors.
4
III. GENERAL
The
following
sections describe
installation
procedures
for
BridgeportiLagun
type
"knee
mills."
The same
guidelines
are
applicable
for
lathes
(where
miniscales are used), grinders,.
EDMs, comparators, etc.
hardware
For systems
that
include
hardware
kits,
the
part
number
is located
on
the
hardware
kit
box
and on
the
corresponding
hardware
drawing.
Verify
that
you
have
the
correct
hardware
kit
and
drawing
for
your
application.
Machines vary
from
type
to
type.
Also, machine
manufactures
may
change
specifications
without
notice. For these reasons,
installation
hardware
may
require
some
modification.
Due
to
the
dynamic
nature
of
the
machine
tool
industry,
hardware
kits
and
drawings
are subject
to
change
without
notice.
Other
machine
types
may
require
special
hardware
fabrication;
however,
actual miniscale
installation
follows
the
same
guidelines.
The
installer
must
maintain
the
specified spar
alignment
tolerances
to
achieve
optimal
performance
and
accuracy. Custom
installations
may
be
completed
by
the
end user
without
assistance;
however,
factory
assistance is available
if
necessary.
Standard
machine
shop practices
should
be used always;
for
example, safety, set up,
cleaning
of
fluids, swarf, etc.
mounting
area
The miniscale
may
be
mounted
directly
to
a
flat,
accurately
machined
surface such as
the
back
of
the
table
on a mill,
providing
the
surface is parallel
to
the
table
travel.
If
the
surface
is
not
flat,
such as
the
Y axis
mounting
surface on a
mill
(the
knee)
or
the
bed
of
a lathe,
then
the
use
of
a
backplate
(included
with
most
mill
hardware
kits
for
Y axis
travel)
is
required.
Also,
the
use
of
shim stock
between
the
miniscale and
the
table
surface can correct
minor
deviations.
Adjustment
must also be
made
for
any
obstructions
such as oil lines,
power
feeds,
etc.
cable
routing
The miniscale
may
be
mounted
with
the
cable
exiting
in
either
direction.
Mounting
considerations
and
miniscale cable
routing
must be
taken
into
account
by
the
installer
to
determine
which
orientation
is best.
5
IV.
X-AXIS
MIINISCALE INSTALLATION ON A
MILLINIG
MACHINE
figure
6. X axis
miniscale
1. It is
recommended
that
the
miniscale be
mounted
on
the
back
of
the
table
with
the
encoder
box
mounted
to
the
saddle. A miniscale
guard
(supplied
with
mill
hardware
kits)
is
then
mounted
over
the
miniscale
for
extra
protection.
2. Position
the
table
to
the
middle
of
its
travel
and lock
it
in
that
position.
Also,
position
the
encoder
box
to
the
middle
of
the
scale's
travel.
See Figure 6.
Determine
whether
the
miniscale
will
be'
mounted
with
the
cable
exiting
to
the
left
or
to
the
right.
Position
the
miniscale assembly against
the
back
of
the
table
so
that
the
bottom
longitudinal
edge
of
the
miniscale is flush
with
the
lower
edge
of
the
table.
Position
the
miniscale so
that
it
does
not
cover
any
drain
holes
which
are
located
at
the
ends
of
some tables. Route
cabling
so
that
the
miniscale
guard
will
not
snag it.
3.
Transfer
punch
the
two
mounting
holes (located on each end
of
the
miniscale)
to
the
table.
Refer
to
Section II
for
drilling
precautions.
Drill/tap
for
1/4-20 x 3/4
low
head
socket cap
bolts
and
mount
the
miniscale.
HELPfUL HINTS
The miniscale can be easily
positioned
by resting
it
on
two
mag-bases placed
under
the
table.
Holes can be
more
accurately
positioned
as
follows:
-o-
•
Transfer
punch,
then
drill/tap
the
first
hole. dr il
lis
center ed
•
Mount
the
miniscale
with
one
bolt
so
that
it
will
pivot.
• Level
the
rniniscale
then
transfer
punch
and
drill/tap
the
second hole.
Using a pencil
to
draw
crosshairs at
the
punch
mark
makes
it
easier
to
see
if
the
drill
is
centered.
dr j/Ih as" walked"
6
14.
Indicate
the
spar surface
(top)
using a
depth
micrometer,
dial
indicator
or
calipers.
Adjust
the
two
miniscale ends so
that
the
spar surface is
parallel
to
the
table
travel
within
0.005
inch (0.13 mrn) over its
entire
travel.
S. Compensate
for
any
bowing
or
sagging
of
the
miniscale
that
may have been caused by
inaccurate
drilling.
DO NOT
PROCEED
BEFORE
MAKING
ANY
NECESSARY
CORRECTIONS.
6. Encoder Box
Mounting:
a. Transfer
punch
the
two
encoder
box
mounting
holes
to
the
saddle surface.
MOVE~
the
table
so
that
holes can be
drilled.
Drill/tap
for
8-32 x 3/4 socket cap screws.
b. Return
the
table
to
its
end
of
travel
position.
Insert
and
adjust
the
4
encoder
box
set
screws (5-40)
until
they
just
touch
the
mounting
surface.
Improper
adjustment
can
force
the
encoder
box
out
of
its
calibrated
position
and
may
cause
erratic
miniscale
performance
and
damage.
c.
Mount
the
encoder
box
with
the
two
8-32 x 3/4 socket cap screws. Do
not
overtighten
the
encoder
box
mounting
screws.
d. Release
the
table
lock
and
move
the
X axis
table
to
its
two
extreme
positions
while
monitoring
the
encoder
box
travel. VERIFY THAT THE MINISCALE CANNOT
BE
OVERTRAVELED! See Figure 5.
7. Position
the
miniscale
guard
over
the
spar.
Drill/tap
for
8-32 x 3/8 pan head screws.
8. Install a cable
clamp
on
the
table
where
the
cable
just
exits
under
the
miniscale
guard.
See Figure 6.
After
installing
the
miniscale
guard,
it
may
be necessary
to
bend
it
out
to
provide
additional
clearance
for
the
cable. It is
not
advisable
to
exit
the
cable
out
the
end
of
the
guard
since
during
travel
it
may
catch
and
pull
the
cable
from
the
encoder
box.
9. Install
the
"O-ring"
in
the
groove
of
the
guard
and
mount
the
miniscale
guard
using
the
8-32 x 3/8 pan head screws.
10. Route and secure
the
cables
to
the
display. Ensure
that
the
cables
are
not
hanging
loose
to
be
caught
on
any
part
of
the
machine
during
operation.
NOTE
Do
not
run miniscale cables
parallel
with
power
wires. Induced noise
may
cause
the
display
to
miscount.
Maintain
a
minimum
of
6 inches
between
cables
and
cross
at
right
angles.
7
v.
V-AXIS
MU\lISCALE INSTALLATION
()N
A
MILLINIG
MACHINE:
front
(towards operator)
backplate
bracket I
assembly
figure
7. Y axis
miniscale
1. It is
recommended
that
the
miniscale be
mounted
on
the
right
side
of
the
mill
knee as
viewed
from
the
front.
See Figure 7. Because
of
mill
variations
and specific applications,
it
may
be necessary
to
mount
the
miniscale on
the
left
side. In most
cases,
the
miniscale
is best
mounted
with
the
encoder closest
to
the
front
of
the
mill.
2.
Bridgeport
mills have holes
pre-drilled
for
backplate
mounting.
The
Bridgeport
hardware
kit
(515-M-BP) comes
with
a
backplate
that
mounts
directly
to
these mills.
other
mills
may
also have these
pre-drilled
holes.
Most
imported
Bridgeport
style mills do
not
have these
holes and
they
will
have
to
be
drilled
into
the
mill
for
mounting.
Hardware
kits
for
these
Bridgeport
copy
mills have a
backplate
with
set leveling screws (515-M-BPC).
Bridgeport
backplates use shim washers
between
the
backplate
and
the
mill
for
leveling
if
necessary.
3. Lagun and some
imported
mills
require
a
slotted
"D"
bracket
for
encoder
box
mounting
to
the
saddle instead
of
the
Bridgeport
style
hardware.
This
hardware
(515-M
-ULC)
may
be
mounted
on
either
the
rear or
the
front
of
the
saddle
depending
on
which
is best
for
a
particular
application.
lhe
hardware
drawing
for
these mills shows
the
slotted
"D"
bracket
mounted
to
the
rear
of
the
saddle. Backpiates in these
hardware
kits come
with
set leveling screws.
4.
Attach
the
miniscale
to
the
backplate. Do
not
tighten
as
adjustment
will
be needed
when
indicating.
Be sure
that
the
miniscale's
alignment
bracket
will
clear
the
backplate
mounting
holes.
If
it
does
not,
remove
the
miniscale, and
flip
the
backplate
over
and
remount
the
miniscale.
Mounting
holes are
offset
to
allow
room
for
the
alignment
bracket.
5.
With
the
hardware
bracketry
pre-assembled,
hold
it
up
to
the
mill
to
determine
the
mounting
locations.
Bridgeport
backplates
may
be
mounted
to
the
pre-drilled
holes.
8
After
locating
the
mounting
area,
mark
both
ends using
the
ways as a reference
with
a
precision
instrument,
such as calipers.
Drill/tap
for
5/16-18 x 1-7/8 socket cap bolts.
Mount
the
backplate
(with
the
miniscale
attached)
to
the
mill.
Verify
that
the
encoder
box
bracket
and
the
rest
of
the
bracketry
will
mount
to
the
encoder
box.
Adjust
the
backplate
for
parallelism using
the
leveling screws
(or
washer/shim
for
Bridgeport
hardware)
as necessary.
SETSCREWS
MUST
BE
PROPERLY
ADJUSTED. IMPROPER ADJUSTMENT
MAY
CAUSE
WARPING OR TWISTING OF THE BACKPLATE.
6.
Indicate
the
spar surface
(top)
with
respect
to
the
ways using a
depth
micrometer,
dial
indicator
or
calipers.
Adjust
the
two
miniscale ends so
that
the
spar surface is parallel
to
the
table
travel
within
0.005 inch (0.13 mm)
over
its
entire
travel.
Use
the
ways as a
reference.
Indicate
the
miniscale face housing surface
from
end
to
end
to
within
0.005
inch (0.13 mm)
over
its
entire
travel.
Adjust
the
backplate
and/or
miniscale using
the
leveling
screws
(or
washer/shim
for
Bridgeport
hardware)
as necessary.
7. Position
the
table
fully
to
its end
of
travel
closest
to
the
operator
(standing
in
front
of
the
machine) and lock
it
into
position.
Position
the
encoder
box
to
the
end
of
its
travel
(towards
the
front
or
operator
side).
Mark
the
saddle
location
and
drill/tap
for
1/4-20 x
3/4 socket cap bolts.
Mount
the
bracket
assembly.
8. Encoder Box
Mounting:
a. Transfer punch
the
two
encoder
box
mounting
holes
to
the
bracket.
Drill/tap
for
8-32 x 3/4 socket cap screws.
b. Insert and
adjust
the
4
encoder
box
set screws (5-40)
until
they
just
touch
the
rnountinq
surface
Improper
adjustment
can
force
the
encoder
box
out
of
its
calibrated
position
and
cause
erratic
miniscale
performance
and
damage.
c.
Mount
the
encoder
box
with
the
two
8-32 x 3/4 socket cap screws. Do
not
overtighten
the
encoder
box
mounting
screws.
f. Release
the
table
lock
and move
the
Y axis
table
to
its
two
extreme
positions
while
monitoring
the
encoder
box
travel.
VERIFY THAT TBE MINISCALE CANNOT
BE
OVERTRAVELED. See Figure 5.
9. No miniscale
guard
is
provided
for
the
mill
Y axis since
the
miniscale is
mounted
underneath
the
saddle. However, an
optional
rniniscale
guard
may be
obtained
by
contacting
your
dealer
or
the
factory.
10. Route
and
secure
the
cables
to
the
display. Ensure
that
the
cables are
not
hanging
loose
to
be
caught
on any
part
of
the
machine
during
operation.
NOTE
Do
not
run miniscale cables parallel
with
power
wires. Induced noise
may
cause
the
display
to
miscount.
Maintain
a
minimum
of
6 inches
between
cables
and
cross
at
right
angles.
9
This manual suits for next models
1
Table of contents
