HEIDENHAIN iTNC 530 User Manual page 236

Example: Helix
%HELIX G71 *
N10 G30 G17 X+0 Y+0 Z-20 *
N20 G31 G90 X+100 Y+100 Z+0 *
N40 T1 G17 S1400 *
N50 G00 G40 G90 Z+250 *
N60 X+50 Y+50 *
N70 G29 *
N80 G01 Z-12.75 F1000 M3 *
N90 G11 G41 R+32 H+180 F250 *
N100 G26 R2 *
N110 G13 G91 H+3240 Z+13.5 F200 *
N120 G27 R2 F500 *
N170 G01 G40 G90 X+50 Y+50 F1000 *
N180 G00 Z+250 M2 *
236
Definition of workpiece blank
Tool call
Retract the tool
Pre-position the tool
Transfer the last programmed position as the pole
Move to working depth
Approach first contour point
Connection
Helical interpolation
Tangential exit
Retract in the tool axis, end program
Programming: Programming Contours