HEIDENHAIN CNC Pilot 4290 Pilot - Manual (Page 59)

59
Simple t
u
rning cy
cles
Simple longitudinal roughing G81
Simple face roughing G82
G81/G82 machines (roughs) the contour area described by the current
tool position and ”X, Z”. If you wish to machine an oblique cut, you can
define the angle with I and K.
The tool moves to clearance at the end of the cycle:
■ G81: X – last lift-off coordinate; Z – cycle start point
■ G82: X – cycle start point; Z – last lift-off coordinate
Parameters
X/Z:
Contour target point (X diameter)
Q: G-function Infeed – default: 0
■ 0: infeed with G0 (rapid traverse)
■ 1: infeed with G1 (feed rate)
G81:
I:
Maximum infeed distance in the X direction
■ I<0: with machining the contour line
■ I>0: without machining the contour line
K: Offset in Z direction – default: 0
G82:
I:
Offset in X direction – default: 0
K: Maximum infeed distance in the Z direction
■ K<0: with machining the contour line
■ K>0: without machining the contour line
Simple longitudinal roughing G81
End of cycle G80
G80 concludes fixed cycles.
• Cutter radius compensation: is not
carried out
• Offsets (G57): are calculated and remain
effective after end of cycle.
• Safety clearance after each step: 1 mm.