OPTIMUM
M A S C H I N E N - G E R M A N Y
808D
Page 326
Operating and Programming — Milling
Create Part Program Part 1
Brief instruction 808D Milling
N5 G17 G90
G500
G71
N10 T1 D1 M6
N15 S5000 M3 G94 F300
N20 G00 X
50
Y
50
Z5
N25 G01 Z-
20
N30 Z
5
N35 G00 Z
500
D0
G500
All absolute path data will
be relative to this position.
The position is written in
the G500 (basic) zero
offset.
G54 G55 G56 G57
G58 G59
With G500 = 0, the offset
for the work-piece can be
stored in the G54
workpiece offset.
N5 G17 G90
G54
G71
N10 T1 D1 M6
N15 S5000 M3 G94 F300
N20 G00 X
0
Y
0
Z
5
N25 G01 Z-
20
N30 Z
5
N35 G00 Z
500
D0
Or
Or
N5 G17 G90
G500
G71
N10 T1 D1 M6
N15 S5000 M3 G94 F300
N20 G00 G
54
X
20
Y
20
Z
5
N25 G01 Z-
20
N30 Z
5
N35 G00 G
53
Z
500
D0
G500 + G54
With G500 unequal to 0
and be activated, the
value in G500 will be
added to the value in
G54.
X50 Y50
G500 X
G500 Y
X50 Y50
G54 X
G54 Y
G54 X0
G500 X
G500 Y
G54 Y0
Machine
coordinate
system
Definition of
target
position
G90
Absolute positioning; with G90 at the
header, the geometry data which
follows will be interpreted relative to
the active zero point in the program,
usually with G54 or G500 or G500 +
G54.
N5 G17
G90
G54 G71
N10 T1 D1 M6
N15 S5000 M3 G94 F300
N20 G00 X
100
Y
100
Z
5
N25 G01 Z
-20
N30 Z
5
N35 G00 Z
500
D0
G91
Relative positioning; with G91 you
can add an incremental value(G91-
defined data is the relative
positioning using the present
position as the start point).
Finally you should change the
program to absolute positioning with
G90.
N5 G17
G90
G54 G70
N10 T1 D1 M6
N15 S5000 M3 G94 F300
N20 G00 X3.93 Y3.93 Z0.196
N25 G01
G91
Z
-0.787
N30 Z
0.196
N35 G00
G90
Z
19.68
D0