HEIDENHAIN MANUALplus 4110 Pilot - Manual (Page 76)

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Threadcut cycle group
Individual thread cut G33
G33 cuts threads in any desired direction and position (longitudinal,
tapered or transverse threads; internal or external threads).
The thread starts at the current tool position and ends at “X, Z”.
Parameters
X, Z:
End point of thread (X diameter)
F: Thread pitch
B: Slop. length – default : 0
P: Overflow length – default : 0
C: Starting angle (if the thread start is defined relative to a contour
element which is not rotationally symmetrical) – default: 0
Q: Number of spindle – default: 0 (main spindle)
H: Reference direction for spindle pitch – default: 3
• H=0: Feed in Z axis (for longitudinal and tapered threads up to a
maximum angle of +45°/–45° to the Z axis)
• H=1: Feed in X axis (for transverse and tapered threads up to a
maximum angle of +45°/–45° to the X axis)
• H=3: Path feed
E: Variable pitch (increases/reduces the pitch per revolution by E) –
default: 0
• “Cycle STOP“ only becomes effective at the end of a thread cut.
• The feed rate and spindle speed overrides are disabled dur-
ing execution of the cycle.