HEIDENHAIN TNC 320 (34055x-06) - Manual (Page 300)

Programming: Q Parameters
8.13 Programming examples
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TNC 320 | User's Manual HEIDENHAIN Conversational Programming | 5/2013
28 Q21 = Q3 *COS Q36 Calculate X coordinate for starting point
29 Q22 = Q4 *SIN Q36 Calculate Y coordinate for starting point
30 L X+Q21 Y+Q22 R0 FMAX M3
Move to starting point in the plane
31 L Z+Q12 R0 FMAX Pre-position in spindle axis to set-up clearance
32 L Z-Q9 R0 FQ10 Move to working depth
33 LBL 1
34 Q36 = Q36 +Q35
Update the angle
35 Q37 = Q37 +1 Update the counter
36 Q21 = Q3 *COS Q36
Calculate the current X coordinate
37 Q22 = Q4 *SIN Q36 Calculate the current Y coordinate
38 L X+Q21 Y+Q22 R0 FQ11 Move to next point
39 FN 12: IF +Q37 LT +Q7 GOTO LBL 1
Unfinished? If not finished, return to LBL 1
40 CYCL DEF 10.0 ROTATION Reset the rotation
41 CYCL DEF 10.1 ROT+0
42 CYCL DEF 7.0 DATUM SHIFT
Reset the datum shift
43 CYCL DEF 7.1 X+0
44 CYCL DEF 7.2 Y+0
45 L Z+Q12 R0 FMAX
Move to set-up clearance
46 LBL 0 End of subprogram
47 END PGM ELLIPSE MM