HEIDENHAIN iTNC 530 299
9.11 Programming Examples
N180 L10.0 *
Call machining operation
N190 Q10 = +0 *
Reset allowance
N200 Q18 = +5 *
Angle increment in the X/Y plane for finishing
N210 L10.0 *
Call machining operation
N220 G00 G40 Z+250 M2 *
Retract in the tool axis, end program
N230 G98 L10 *
Subprogram 10: Machining operation
N240 Q23 = Q11 + Q6 *
Calculate Z coordinate for pre-positioning
N250 Q24 = +Q4 *
Copy starting angle in space (Z/X plane)
N260 Q26 = Q6 + Q108 *
Compensate sphere radius for pre-positioning
N270 Q28 = +Q8 *
Copy rotational position in the plane
N280 Q16 = Q6 + -Q10 *
Account for allowance in the sphere radius
N290 G54 X+Q1 Y+Q2 Z-Q16 *
Shift datum to center of sphere
N300 G73 G90 H+Q8 *
Account for starting angle of rotational position in the plane
N310 G98 L1 *
Pre-position in the tool axis
N320 I+0 J+0 *
Set pole in the X/Y plane for pre-positioning
N330 G11 G40 R+Q26 H+Q8 FQ12 *
Pre-position in the plane
N340 I+Q108 K+0 *
Set pole in the Z/X plane, offset by the tool radius
N350 G01 Y+0 Z+0 FQ12 *
Move to working depth
N360 G98 L2 *
N370 G11 G40 R+Q6 H+Q24 FQ12 *
Move upward in an approximated “arc”
N380 Q24 = Q24 - Q14 *
Update solid angle
N390 D11 P01 +Q24 P02 +Q5 P03 2 *
Inquire whether an arc is finished. If not finished, return to LBL 2.
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