DIN/ISO programming | Drilling cycles
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
387
Linear pattern on lateral surface G744
Cycle G744 is used to machine linear drilling patterns or milling
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, C
Pattern positions:
W and Q
Wi and Q
If the Final point 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:
XS: Start point of drilling/milling operation (diameter value)
Z: Start point of pattern in polar coordinates
XE: Final point of drilling/milling operation (diameter value)
ZE: Final point of pattern (default: Z)
C: Start angle (polar)
W: Final angle of pattern (no input: Holes/figures are arranged
on the lateral surface at regular spacing)
Wi: End angle – Angle increment
Q: Number of holes
A: Angle – orientation angle of the pattern
R: Length – distance between first and last position (reference:
unrolled lateral surface XS)
Ri: Length – distance to next position (reference: unrolled lateral
surface XS)
Example: G744
%744.nc
N1 T7 G197 S1200 G195 F0.2 M104
N2 M14
N3 G110 C0
N4 G0 X110 Z2
N5 G744 XS102 Z-10 ZE-35 C0 W270 Q5
N6 G71 XS102 K7
N7 M15
End, return to start M30END
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