5 p a th co nt o u rs —p olar co or d inat e s – HEIDENHAIN TNC 410 ISO Programming User Manual
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HEIDENHAIN TNC 410, TNC 426, TNC 430
143
6.5 P
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Example: Linear movement with polar coordinates
%LINEARPO G71 *
N10 G30 G17 X+0 Y+0 Z-20 *
Define the workpiece blank
N20 G31 G90 X+100 Y+100 Z+0 *
N30 G99 T1 L+0 R+7.5 *
Define the tool
N40 T1 G17 S4000 *
Tool call
N50 G00 G40 G90 Z+250 *
Define the datum for polar coordinates
N60 I+50 J+50 *
Retract the tool
N70 G10 R+60 H+180 *
Pre-position the tool
N80 G01 Z-5 F1000 M3 *
Move to working depth
N90 G11 G41 R+45 H+180 F250 *
Approach the contour at point 1
N110 G26 R5 *
Approach the contour at point 1
N120 H+120 *
Move to point 2
N130 H+60 *
Move to point 3
N140 H+0 *
Move to point 4
N150 H-60 *
Move to point 5
N160 H-120 *
Move to point 6
N170 H+180 *
Move to point 1
N180 G27 R5 F500 *
Tangential departure
N190 G40 R+60 H+180 F1000 *
Retract tool in the working plane, cancel radius compensation
N200 G00 Z+250 M2 *
Retract in the spindle axis, end of program
N999999 %LINEARPO G71 *
X
Y
50
100
50
I,J
5
100
R
45
60°
5
1
1
1
2
1
3
1
4
1
5
1
6