SAFETY
INTRODUCTION
CONTENTS
SECTION
SECTION
1:
2:
FIRST
1.1.1
1.1.
1.
1.2.2
1.2.3
1.
1.
1.3.2
1.
1.3.4
1.3.5
STEPS.
2
2.1
2.4
3.1
3.3
FURTHER
2.1
2.2
2.3
2.4
Installation.
Machine
Machine
Manual
Pneumatic
Machine
Operations
Absolute
Program
Specification.
Function
operation.
Facilities.
Offset.
And
And
Format
Programming - G
Programming - M
EXPLANATIONS
GOO,
G02
G03
G70,
GOL
1n
in
GIL
OF
GOZ, G03.
detail.
detail.
G80,
Keyboard. (Power
Programming
Incremental
And
Axis
Directions.
Codes.
Codes.
G
CODES.
G82
G81,
Facing.'
On).
Sheets.
Co-Ordinates.
SECTION
3:
2.5
2.6
2.7
MAIN
3.1
3.2
3.3
3.4
3.5
3.6
3.1
3.8
3.9
MENU
G82,
G84,
G94, G95,
Grooving,
G90,
G91.
G96,
G83.
G9,.
OPTIONS.
The
Main
Menu.
Yrite A New
Program.
Edit/Continuation.
Test
Print
Execute
Help Date
File
Machine
Run
A Program.
Program.
A
Program.
A
Library.
Index.
feedback/Offsets.
SECTION
4:
MAINTENANCE
AND
REPAIRS.
4.1.1
4.1.
4.1.3
4.1.4
4.2.1
4.2.2
4.3.1
2
ElectricalOverview
Electrical
Electrical
Electrical
Foundation
LUbrication
Power
fault
Diagrams.
Diagram.
Diagram.
..
Supplies.
Finding.
Arrangement Drawings.
COPYRIGHT
~ll
right~
1n a
electronic,
prior
THE
retr1eval
permission
HEALTH
(C)
Boxford
reserved.
system,
mechanical,
of
AND
SAfETY
Limited
No
part
or
transmitted,
photocopying,
Boxford
AT
WORK
1991.
of
this
Limited.
ACT
1974.
publication
in
any form
recording
may
he
or
or
otherwise,
reproduced,
by
any
means,
without
stored
the
'-'
Under
equipment
The
parameters
cause
practices
instructions
Many
including:
*
...
this
regarding
equipment,
any
danger
are
safety
Fully
protection
Positive
and
feed
* Delayed
protect
*
>Ie
*
'"
'"
>Ie
...
'"
...
'"
'"
*
*
Mandatory
cycle
advance
Ideal
Feed
Cycle
F'eed
Single
rate
hold.
Emergency
Power on
Low
voltage
Machine
Fully
Integrated
'Power
Act
information
when
set
for
its
or
observed
supplied.
features
enveloping
for
microswitch
hold.
response
against
graphics
can
be
commenced and
of
the
position
over-ride
stop.
block
isolator
enclosed
on'
operation.
stop
indicator
control
electrical
indicator
its
safe
used
hazard
in
mechanical
and
have
been
transparent
spindle
protection
to
spindle
accidental
run
actual
for
machines
to
push
main
button
lamp.
circuitry
switch.
motor.
lamp.
has
to
use.
normal
to
health
they
are
incorporated
and
feed
use
required
step
metal
control
•
panel
be made
or
and
and
used
available
prescribed
electrical
safety
in
accordance
in
chip/work
hold.
on
forward/reverse
in
manual mode.
for
by
removal
controls.
jog
.
and power
the
new
step
in
rates.
wiring.
guard
pUlley
programs
execution
the
to
users
applications
performance,
if
normal
with
the
design
with
and
machining
end
X/Z
positive
guard
before
of
of
this
within
should
engineering
the
of
this
microswitch
for
jog
buttons
the
graphics
cycle.
the
Dot
equipment
spindle
to
machining
in
Whilst
manual
proper'
Wheatley,
Fax:
we
use
0422
attempt
if
there
of
Halifax,
355924.
this
to
give
is
any
equipment
West
the
fullest
doubt
Yorkshire,
whatsoever
the
user
HX)
possible
about
should
SAF.
Tel:
user
aspects
contact
0422 358311.
informat~on
relat1n~
Boxford
L~m1ted,
in
~o
the
the
INTRODUCTION
The
Boxford
guide
performance
We
great
useful
on
We
thoroughly
Our
advice
the
emphasise
extent
life
the
care
suggest
commercial
or
280
user
and
of
taken
therefore
digested
information
TH
of a new
maximum
our
belief
upon
the
the
in
and
is a British
lathe
useful
however,
adoption
lathe,
its
that
and
technical
its
installation,
the
adhered
departments
should
made
CNC
towards
life.
of
performance
advice
to
this
that
safe
as
be
its
safety
and
closely
required.
lathe,
safe
on
working
and
its
operation
information
as
will
be
and
our
operation,
the
lathe
practices,
accuracy
and
routine
offered
possible.
pleased
objectives
optimum
relies
and
that
depend
maintenance.
should
to
supply
are
to
to a very
the
largely
be
further
Please
stamped
quote
at
the
the
Lathe
lower
Model and Machine
right
BOXFORD
hand
LTD
corner
of
HALIFAX
Serial
the
(0422 358311)
Number
bed
in
(which
all
communications.
may
be found
INSTALLATION
1.1.1
Siting
The machine
is
The Machine
capable
should
of
supporting
Equipment and an
sufficient
Machine
Under
normal
bolted
clamp
bolts
Foundation
In
cases
should
levelling
Electrical
The
280TM
plus a neutral
the
415
Fixing
down,
where
be
provided
and
requires
volts.
space
operating
but
are
Diagram
the
straightness
Supply
line.
be
located
Operator,
should
be
the
combined
without
provided
on a
conditions
for
optimum
accuracy
recommended and
4.2.1.
machine
to
prevent
is
checks
a
20A 3 phase
A
~ariation
\--
firm,
noticeable
for
it
is
bolt
to
the
holes
be
free
machine from
have been
415V
of
plus
preferably
weights
cleaning
not
and
cutting
are
standing
AC
power
or
minus
concrete,
of
Machine,
deflection.
and
maintenance
essential
for
performance
provided -refer
some
being
form
moved
completed.
supply
15
(suitably
volts
floor
Accessories,
purposes.
the
machine
foundation
to
of
location
bodily
once
earthed)
is
tolerable
which
to
on
be
or
Air
Supply
If
the
power
tailstock,
operate
pressure
machine
them.
and
capable
is
The
supplied
it
will
supply
of
with a parts
be
necessary
required
giving
approximately
to
should
catcher,
run a
be
at
1.0
power
suitable
85
pounds
cubic
chuck/collet
air
supply
per
square
feet
per
minute.
or
to
inch
1.
2.2
1
of
2
MANUAL
The
prior
SPINDLE
With
the
of
OPERATION
280TM
to
OPERATION
the
relevant
the
spindle
commences
spindle
key
achieved.
direction
revolving
illuminate
COOLANT
It
may
coolant
pipes
coolant
Coolant
M08
OPERATION
be
on key
being
off
is
and
H09
illuminated.
using
the
may
of
course
CNC
control
machine
in
direction
direction
to
rotate.
with
To
key
press
after
the
decrease
until
the
the
necessary
illuminates
open,
the
key.
program~able
respectively
To
do
this
coolant
on
he
used
being
manual
used.
mode
key on
keys
To
increase
illuminated
the
spindle
the
required
spindle
spindle
to
use
coolant
the
coolant
on and
but
press
key.
the
the
stop
has
is
only
the
as
a manual machine
the
spindle
manual
red
the
LED
speed
speed
key
LED
speed
until
press
is
and
operation
the
stopped.
in
a manual
LED
and,
subject
emitted.
off
with
if
key.
the
The M
the
auto
may
be
illuminates
of
the
the
required
the
opposite
obtained.
LED
on
operation.
to
To
stop
the
use
of
coolant
codes
for
setting
started
panel.
and
spindle
speed
To
stop
the
stop
the
taps
coolant
the
miscellaneous
key
may
be
up
up by
On
the
press
pressing
pressing
spindle
the
is
spindle
the
spindle
key
will
Pressing
on
the
press
LED
is
overridden
purposes
one
the
coolant
the
~odes
by
JOG
OPERATION
When
mode
tbe
and
machine
selects
illuminated
and Z
set
be moved
It
required
by
may
jog
the
he
keys
at
that
to
automatically
the
moves
slides
key.
An
alternative
them
labelled
active.
chosen,
being
the
at
incremental
INC
As a safety
is
lit.
amount on
is
the
lights
may
feedrate
the
same
the
be moved.
overrides
at
to
JOG
and
the
smallest
Pressing
the
powered on
JOG
operation.
on
the
two
be
used
to
knob from 0 up
time
maximum
If
or
jog
so,
whatever
rapid
moving
jog
the
measure
traverse
the
distances.
LED
the
increment
either
key which
LOW
MED.L
MED.H
HIGH
x
x
x
x
of
is
1
10
100
lK
the
control
Confirmation
keys.
jog
With
the
to
each
then
axis
rate
pressing
is
feedrate
rate.
slides
at a continuous
To
will
illuminate
default
of
the
axis
illuminated.
O.OliT1lB
=
0.10mm
=
1.00mIll
=
lO.OOmm
=
automatically
the
slides
the
maximum
individually.
not
fast
the
value
Care
use
this
increment,
.Olmm
jog
and
keys
or
or
or
or
of
this
machine
around
the
jog
enough
centre
is
set
must be
teedrate
facility
indicating
when
is
indicated
will
0.0004!'!
0.0040"
0.0400"
0,.4000'"
defaults'to
may
in
this
machine
rate.
for
rapid
on
taken
Both
the
key
the
when
press
the
facility
this
by
increment
be
seen
state
at a rate
axes
distance
dial
using
is
to
the
key
facility
the
the
manual
by
the
and
move
is
LED
axis
the
X
may
this
is
by
This
5mall
facility
'l\oV~S
to
is
be
particularly
"!lade
"Ind
useful
:H:r:l\ri'lte
when
t-nol
setting
I)fts~ts
tool
to
he sP.t.
offsets
as
it
allows
1.2.4
1
of
2
MACHINE
The machine
exact
point
In
all
centreline
of
workholding
front
OFFSET
offset
distance
on
the
instances
of
end
of
from a datum
cross
the
device
the
The X and Z datum
type
of
which
type
turret,
stations
On
a machine
the
centre
the
cross
The two
before
these
of
values
workholding
and
values
the
tooling
then
the Z axis
fitted
of
the
slide.
for
machine
if
is
on
the
slide
the
'X' datum
spindle.
has
device.
points
system
the
X
with a quick
location
the
machine
leaves
either
altered,
2aOTM
point
when
The Z datum
been
for
the
is
axis
datum
datum
stud
the
a
collision
or
plays a very
at
the
the
slides
point
at
chosen.
cross
chosen.
is
taken
is
taken
change
and
the
offset
will
factory.
involving
the
machines
important
spindle
are
the
point
In
all
slide
spindle
end
at
HOME
varies
cases
differ
For a machine
as
the
as
the
front
toolpost
Z datum
the
is
usually
However
the
it
may
turret
software
role
of
the
position.
end
is
depending
the
datum
once
again
fitted
centreline
face
of
X datum
taken
have
is
as
been
be
necessary
occurs
RESET.
as
it
machine
always
on what
point'
depending
~ith
of
the
disc.
is
taken
the
front
set
or
is
to
the
is
a
disc
the
by
Boxford
to
the
the
a
type
the
on
ID
from
of
alter
type
To
gain
on
the
operation
The
following
Should
following
access
the
display
OLD
NEW
to
select
screen
old
values
appears
Z
VALUE:
Z UALUE;
CORRECT 1
I,
I.
the
machine
panel
will
now
be
zero
after
e
offset
followed
be
displayed
(eg.
pressing
L
values
after
by
the
with
a
software
the
To
insert
the
press
both
appears
the
or
'NO'.
press
"offset"
datums key.
the
"write"
the
or
the
EOB
key
key.
old
values
RESET)
key
alter
in
key.
labelled
then
only.
the
the
After
values a confirmation
and
is
answered
appropriate
soft
key
"offset"
in
X and
Z.
the
1~.
.~.::;=======--
values
value
@,L
for
and
entering
prompt
by
pressing
of
'YES'
1.3.1
1
of
3
OPERATIONS
following
The
be made:
1.
2.
3.
4.
Drawing
Examine
datum
Machining
Decide
the
machine
finish
operations
Tooling
Choose
degree
by
appropriate
Programming
AND
PROG~AMMING
points
the
drawing,
if
necessary.
on
the
operation,
profile)
should
appropriate
diamond
require
material
and
be
tools
insert
diameter
SHEETS
consideration
choose
from which
(eg.
the
sequence
performed.
for
Lff copy
drill.
so
that
a work datum and
the
part
rough
each
turn
in
machining
turning
15mm
which you
tool
and
a
logical
re-dimension
is
to
be
dia.,
sequence,
rough
think
centre
approach
from
machined.
chamfer,
that
ego
drill
these
roughing
can
this
Consider
55
followed
All
sheet
found
Decide on
rates,
of
these
and programming
overleaf.
incremental/absolute
spindle
decisions
speeds
should
sheet.
etc.
Blank
dimensions,
be
systematically
forms
for
linear
recorded
you
to
interpolation
on
copy
and
an
operating
use,can
feed
be
1.
3.
4
PROGRAMMING
1.
Preparatory
Codes
are
commonly
- G
for
digits.
2.
Miscellaneous
These
letter
A summary
functions
being M followed
follows:
Preparatory
Code
GOO
GOl
Codes
the
of
No.
CODES
known
the
(G
Codes):
various
as G codes;
Functions
have been
G and M
Codes (G-codes)
Function
Rapid
Linear
preparatory
(M
Functions):
standardised
by
two
functions
traverse
interpolation
functions
the
address
(BS
digits.
implemented on
positioning
have
letter
3635:1972);
been
G
being
the
standardised
followed
the
address
Boxford
280TM
and
by
two
G02
GOJ
G04
G50
G70
Circular
Circular
interpolation
interpolation
Time Dwell
Set
maximum
Programmable
G7l Programmable
G80
Gal
G82
G83
G84
G90
G91
Canned
Canned cyc.le
Canned
Canned
Canned
Absolute
Incremental
cycle -cancel
cycle
cycle
cycle -thread
data
spindle
inch
metric
roughing
-
-
facing
speed
dimensions
dimensions
- deep hole-
input
data
input
clockwise
counter
diameter
grooving
or
(peck
cutting
(CV)
clockwise
drilling)
(cc~)
G94
G95
G96
r,97
Feed/min
Feed/rev
Constant
Const~nt
surface
R.?~.
speed
(c.s.s.)
2.1
FURTHER
GOO
Rapid movement.
This
specified
cutting
value
GOl
Linear
The
each
values.
G02
Clockwise
This
quadrant.
needed:
X
value
Z
value
I
value = the
K
value = the
(Note
EXPLANATIONS
code moves
X and Z
metal.
of
00
in
When
the
interpolation.
tool
axis
will
or
diagonally
move
circular
code moves
After
=
the
=
the Z co-ordinate
entering
diameter
distance
position
distance
position
that
I and K
OF G CODES
the
tool
along
values
as
entering
'G'
column.
at
the
from
interpolation.
the
tool
clockwise
G02
to
from
at
the
from
at
the
ace
unsigned
the X axis
quickly
a program
specified
its
as
feed
presen~
in a circular
the
following
which movement
to
which movement
the
arc
centre
start
start
the
of
arc
of
the
centre
the
values)
and
then
possible.
the
computer has a
rate
in a straight
position
extra
is
to
be made.
is
(incremental)
cut
along
(incremental)
cut
along
the Z axis
It
is
not
default
to
the
new
arc
in a single
information
to be made.
to
the X axis.
to
the Z axis.
to
used
line
X and Z
is
the
the
the
for
along
tool
tool
G03
Counter
This
single
clockwise
code moves
quadrant.
needed:
X
value
Z
value
I
value = the
=
=
the
the
diameter
distance
position
K
value = the
position
(Note
that
I and K
Worked examples
circular
the
tool
After
Z
co-ordinate
at
distance
at
are
of
G02
interpolation.
counter
entering
to
which movement
to
from
the
from
the
the
start
the
start
unsigned
and
GO)
clockwise
GO)
the
in a circular
following
is
which movement
arc
of
arc
of
centre
the
centre
the
(incremental)
cut
along
(incremental)
cut
along
values).
follow
overleaf.
to
be made.
is
arc
extra
to
information
be made.
to
the X axis.
to
the Z axis.
in
the
the
a
is
tool
tool