HEIDENHAIN CNC PILOT 640 User Manual page 275

DIN/ISO programming | C-axis contours – fundamentals
Slot centerline as reference and original position
Programming:
Pattern center = center of curvature
Pattern radius = curvature radius
Original position
These commands arrange all slot at the same position.
Example: Slot centerline as reference, original position
N.. G402 Q4 K30 A0 XK0 YK0 H1
N.. G303 I0 J0 R15 A-20 W20 B3 P1
Center of curvature as reference and normal position
Programming:
Pattern center <> center of curvature
Pattern radius = curvature radius
Normal position
These commands arrange the slots at the distance of the
radius plus curvature radius
Example: Center of curvature as reference, normal position
N.. G402 Q4 K30 A0 XK5 YK5 H0
N.. G303 I0 J0 R15 A-20 W20 B3 P1
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
about the pattern center.
Circular pattern, original position
Circular slot
pattern
Circular pattern, normal position
Circular slot
4
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