Departing Tangentially On A Straight Line: Dep Lt; Departing On A Straight Line Perpendicular To The Last Contour Point: Dep Ln - HEIDENHAIN TNC 426 B User Manual

Departing tangentially on a straight line: DEP LT

The TNC move the tool on a straight line from the last contour point P
to the end point P . The line lies in the extension of the last contour
E N
element. P is located at the distance LEN from P
N
Program the last contour element with the end point P
radius compensation.
Initiate the dialog with the APPR/DEP key and DEP LT soft key:
LEN: Enter the distance from the last contour element
P to the end point P
E
Example NC blocks
23 Y+20 RR F100
24 DEP T EN 12.5 F100
25 Z+100 FMAX M2
Departing on a straight line perpendicular to the
last contour point: DEP LN
The tool moves on a straight line from the last contour point P
the end point P . The line departs on a perpendicular path from the
N
last contour point P . P is separated from P
E N
plus the tool radius.
Program the last contour element with the end point P
radius compensation.
Initiate the dialog with the APPR/DEP key and DEP LN soft key:
LEN: Enter the distance from the last contour element
P to the end point P
E
Important: Always enter LEN as a positive value!
Example NC blocks
23 Y+20 RR F100
24 DEP N EN+20 F100
25 Z+100 FMAX M2
100
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.
E
and
E
.
N
by the distance LEN
E
and
E
.
N
Y
20
Last contour element: P
Depart contour by LEN = 12.5 mm
Retract in Z, return to block 1, end program
Y
to
E
P
N
R0
20
Last contour element: P
Depart perpendicular to contour by LEN = 20 mm
Retract in Z, return to block 1, end program
6 Programming: Programming Contours
RR
P
E
RR
P
N
R0
X
with radius compensation
E
RR
P
E
RR
20
X
with radius compensation
E