212 Programming: Programming Contours
6.3 Contour Approach and Departure
Approaching on a straight line with tangential
connection: APPR LT
The tool moves on a straight line from the starting point P
S
to an
auxiliary point P
H
. It then moves to the first contour point P
A
on a
straight line that connects tangentially to the contour. The auxiliary
point P
H
is separated from the first contour point P
A
by the distance
LEN.
U Use any path function to approach the starting point P
S
U Initiate the dialog with the APPR/DEP key and APPR LT soft key:
U Coordinates of the first contour point P
A
U LEN: Distance from the auxiliary point P
H
to the first
contour point P
A
U Radius compensation RR/RL for machining
Example NC blocks
Approaching on a straight line perpendicular to
the first contour point: APPR LN
The tool moves on a straight line from the starting point P
S
to an
auxiliary point P
H
. It then moves to the first contour point P
A
on a
straight line perpendicular to the first contour element. The auxiliary
point P
H
is separated by the distance LEN plus the tool radius from the
first contour point P
A
.
U Use any path function to approach the starting point P
S
U Initiate the dialog with the APPR/DEP key and APPR LN soft key:
U Coordinates of the first contour point P
A
U Length: Distance to the auxiliary point P
H
. Always
enter LEN as a positive value!
U Radius compensation RR/RL for machining
Example NC blocks
7 L X+10 Y+10 R0 FMAX M3
Approach P
S
without radius compensation
8 APPR LT X+20 Y+20 Z-10 LEN15 RR F100
P
A
with radius comp. RR, distance P
H
to P
A
: LEN=15
9 L X+35 Y+35
End point of the first contour element
10L...
Next contour element
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