Operation Manual

HEIDENHAIN MANUALplus 4110 387
6.22 Pattern Machining
Linear pattern, lateral surface G744
With cycle G744, you can machine linear hole patterns or figure
patterns in which the individual features are arranged at a regular
spacing on the lateral surface.
Parameter combinations for defining the starting point and the pattern
positions:
 Starting point 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 starting point (polar coordinates)
 C starting angle (polar coordinates)
 X starting point of drilling/milling operation (diameter value)
 XE end point of drilling/milling operation (diameter value)
 ZE end point of pattern (default: Z)
 W end angle of pattern—no input: Holes/figures are arranged on the
lateral surface at regular spacing
 Wi end angle: Angle increment—distance to next position
 Q number of holes/figures (default: 1)
Example: G744
%744.nc
[G744]
N1 T60 G197 S1200 G195 F0.2 M104
N2 M14
N3 G110 C0
N4 G0 X110 Z2
N5 G744 X102 Z-10 ZE-35 C0 W270 Q5
N6 G71 X102 K7
N7 M15
END