Heidenhain MANUALplus 4110 User Manual Page 338

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338 6 DIN Programming
6.15 Thread Cycles
Thread single path G33
G33 cuts threads in any desired direction and position with variable
pitch (longitudinal, tapered or transverse threads; internal or external
threads). The thread starts at the current tool position and ends at the
"end point X, Z."
Parameters
X end point of thread (diameter value)
Z end point of thread
F thread pitch
B run-in length (default: 0): Distance required to accelerate to the
programmed feed rate
P run-out length (default: 0): Distance required to decelerate the
slide
C starting angle: Position of the spindle at the thread start
(default: 0°)
Q number of spindle (default: 0=master spindle)
H reference direction for thread pitch
(default: 3)
H=0: Feed rate on the Z axis (for longitudinal and taper threads up
to a max. angle of +45°/–45° to the Z axis)
H=1: Feed rate on the X axis (for transverse and taper threads up
to a max. angle of +45°/–45° to the X axis)
H=3: Contouring feed rate
E variable pitch (default: 0)
E>0: Increase the pitch per revolution by E
E<0: Decrease the pitch per revolution by E
Example: G33
%33.nc
[G33]
N1 T45 G97 S1100 G95 F0.5 M3
N2 G0 X101.84 Z5
N3 G83 X100 Z5 I0.15
N4 G33 X120 Z-80 F1.5
N5 G33 X140 Z-122.5 F1.5
N6 G0 X150 Z5
N7 G80
END
"Cycle STOP" becomes effective at the end of a thread
cut.
Feed rate override is not effective during cycle
execution.
Feed forward control is switched on.
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