HEIDENHAIN iTNC 530 User Manual page 317

N210 G00 G40 Z+250 M2 *
N220 G98 L10 *
N230 Q16 = Q6 - Q10 - Q108 *
N240 Q20 = +1 *
N250 Q24 = +Q4 *
N260 Q25 = ( Q5 - Q4 ) / Q13 *
N270 G54 X+Q1 Y+Q2 Z+Q3 *
N280 G73 G90 H+Q8 *
N290 G00 G40 X+0 Y+0 *
N300 G01 Z+5 F1000 M3 *
N310 G98 L1 *
N320 I+0 K+0 *
N330 G11 R+Q16 H+Q24 FQ11 *
N340 G01 G40 Y+Q7 FQ12 *
N350 Q20 = +Q20 + 1 *
N360 Q24 = +Q24 + +Q25 *
N370 D11 P01 +Q20 P02 +Q13 P03 99 *
N380 G11 R+Q16 H+Q24 FQ11 *
N390 G01 G40 Y+0 FQ12 *
N400 D01 Q20 P01 +Q20 P02 +1 *
N410 D01 Q24 P01 +Q24 P02 +Q25 *
N420 D12 P01 +Q20 P02 +Q13 P03 1 *
N430 G98 L99 *
N440 G73 G90 H+0 *
N450 G54 X+0 Y+0 Z+0 *
N460 G98 L0 *
N99999999 %CYLIN G71 *
HEIDENHAIN iTNC 530
Retract in the tool axis, end program
Subprogram 10: Machining operation
Account for allowance and tool, based on the cylinder radius
Set counter
Copy starting angle in space (Z/X plane)
Calculate angle increment
Shift datum to center of cylinder (X axis)
Account for rotational position in the plane
Pre-position in the plane to the cylinder center
Pre-position in the tool axis
Set pole in the Z/X plane
Move to starting position on cylinder, plunge-cutting obliquely into
the material
Longitudinal cut in Y+ direction
Update the counter
Update solid angle
Finished? If finished, jump to end
Move in an approximated "arc" for the next longitudinal cut
Longitudinal cut in Y– direction
Update the counter
Update solid angle
Unfinished? If not finished, return to LBL 1
Reset the rotation
Reset the datum shift
End of subprogram
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