HEIDENHAIN MANUALplus 4110 - Manual (Page 389)

HEIDENHAIN MANUALplus 4110 389
6.22 P
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Circular pattern, lateral surface G746
With cycle G746, you can machine hole patterns or figure patterns in
which the individual features are arranged at a regular spacing in a
circle or circular arc on the lateral surface.
Parameter combinations for defining the center of the pattern and the
pattern positions:
„ Center of pattern: Z and C
„ Pattern positions:
„ W and Q
„ Wi and Q
If XE has not been defined, the drilling/milling cycle or the figure
definition of the next NC block is used as a reference. Using this
principle, you can combine pattern definitions with drilling cycles (G71,
G74, G36) or milling cycles (figure definitions with G314, G315, G317).
Parameters
 Z center of pattern (polar)
 C angle: Center of pattern (polar)
 X starting point of drilling/milling operation (diameter value)
 XE end point of drilling/milling operation (diameter value)
 K diameter: Pattern diameter
 A starting angle —position of the first hole/figure
 K diameter: Pattern diameter (default: Current X position)
 W end angle —position of the last hole/figure
 Wi end angle —distance to the next position
 Q number of holes/figures (default: 1)
 V direction of rotation (default: 0): Position of holes/figures
(required if W is defined):
„ V=0: Holes are placed on the longer arc.
„ V=1: Holes are arranged clockwise, starting at A.
„ V=2: Holes are arranged counterclockwise, starting at A.
Example: G746
%746.nc
[G746]
N1 T60 G197 S1200 G195 F0.2 M104
N2 M14
N3 G110 C0
N4 G0 X110 Z2
N5 G746 Z-40 C0 K40 Q8
N6 G71 X102 K7
N7 M15
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