HEIDENHAIN TNC 620 User Manual page 261

Example: Linear movements and chamfers with
Cartesian coordinates
%LINEAR G71 *
N10 G30 G17 X+0 Y+0 Z-20*
N20 G31 G90 X+100 Y+100 Z+0*
N30 T1 G17 S4000*
N40 G00 G40 G90 Z+250*
N50 X-10 Y-10*
N60 G01 Z-5 F1000 M3*
N70 G01 G41 X+5 Y+5 F300*
N80 G26 R5 F150*
N90 Y+95*
N100 X+95*
N110 G24 R10*
N120 Y+5*
N130 G24 R20*
N140 X+5*
N150 G27 R5 F500*
N160 G40 X-20 Y-20 F1000*
N170 G00 Z+250 M2*
N99999999 %LINEAR G71 *
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Path contours  Cartesian coordinates
Define the workpiece blank for graphic workpiece
simulation
Call the tool in the spindle axis and with the spindle speed S
Retract the tool in the spindle axis at rapid traverse
Pre-position the tool
Move to working depth at feed rate F = 1000 mm/min
Approach the contour at point 1, activate radius
compensation G41
Tangential approach
Move to point 2
Point 3: first straight line for corner 3
Program a chamfer with length 10 mm
Point 4: 2nd straight line for corner 3, 1st straight line for
corner 4
Program a chamfer with length 20 mm
Move to last contour point 1, second straight line for corner
4
Tangential exit
Retract the tool in the working plane, cancel radius
compensation
Retract the tool, end program
6
6.4
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