Programming contours
6.3
Approaching and departing a contour
6
250
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Departing in a straight line with tangential
connection:
DEP LT
The tool moves on a straight line from the last contour point P
E
to
the end point P
N
. The line lies on the extension of the last contour
element. P
N
is separated from P
E
by the distance
LEN
.
Program the last contour element with the end point P
E
and
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
E
to the end point P
N
.
R0=G40; RL=G41; RR=G42
Example NC blocks
N20 G01 Y+20 G42 F100*
Last contour element: PE with radius compensation
N30 DEP LT LEN12.5 F100*
Depart contour by LEN=12.5 mm
N40 G00 Z+100 M2*
Retract in Z, return to block 1, end program
Departing in a straight line perpendicular to the last
contour point:
DEP LN
The tool moves on a straight line from the last contour point P
E
to
the end point P
N
. The line departs on a perpendicular path from the
last contour point P
E
. P
N
is separated from P
E
by the distance
LEN
plus the tool radius.
Program the last contour element with the end point P
E
and
radius compensation
Initiate the dialog with the
APPR DEP
key and
DEP LN
soft key
LEN
: Enter the distance from the last contour
element to P
N
. Important: Enter a positive value in
LEN
R0=G40; RL=G41; RR=G42
Example NC blocks
N20 G01 Y+20 G42 F100*
Last contour element: PE with radius compensation
N30 DEP LN LEN+20 F100*
Depart perpendicular to contour by LEN=20 mm
N40 G00 Z+100 M2*
Retract in Z, return to block 1, end program
Summary of Contents for TNC 620 Programming Station
Page 4: ......
Page 5: ...Fundamentals ...
Page 28: ...Contents 28 HEIDENHAIN TNC 620 ISO Programming User s Manual 9 2016 ...
Page 57: ...1 First Steps with the TNC 620 ...
Page 77: ...2 Introduction ...
Page 110: ......
Page 111: ...3 Fundamentals file management ...
Page 166: ......
Page 167: ...4 Programming aids ...
Page 194: ......
Page 195: ...5 Tools ...
Page 234: ......
Page 235: ...6 Programming contours ...
Page 284: ......
Page 285: ...7 Data transfer from CAD files ...
Page 304: ......
Page 305: ...8 Subprograms and program section repeats ...
Page 323: ...9 Programming Q parameters ...
Page 384: ......
Page 385: ...10 Miscellaneous functions ...
Page 407: ...11 Special functions ...
Page 433: ...12 Multiple axis machining ...
Page 475: ...13 Pallet management ...
Page 480: ......
Page 481: ...14 Manual Operation and Setup ...
Page 549: ...15 Positioning with Manual Data Input ...
Page 554: ......
Page 555: ...16 Test Run and Program Run ...
Page 590: ......
Page 591: ...17 MOD Functions ...
Page 622: ......
Page 623: ...18 Tables and Overviews ...