HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 527)

HEIDENHAIN CNC PILOT 4290 527
6.14 Int
e
ra
ctiv
e W
o
rk
ing Plan Gener
a
tion (IWG)
Contour milling – Roughing/Finishing (G840)
The IWG generates the cycle G840, including the following
parameters, for the selected open or closed contour.
Parameters
K Retraction plane (default: back to starting position)
„ Front/read face: Position in Z direction
„ Lateral surface: Position in X direction (diameter)
Q Cutter position
„ Q=0: Milling center on the contour
„ For closed contours:
„ Q=1: Inside milling
„ Q=2: Outside milling
„ For open contours:
„ Q=1: Left of the contour (reference: machining direction)
„ Q=2: Right of the contour (reference: machining direction)
H Cutting direction
„ H=0: Up-cut milling
„ H=1: Climb milling
R Approach radius
„ R=0: Approach contour element directly
„ R>0: Approaching/departing radius that connects
tangentially to the contour element
„ R<0 for inside corners: Approaching/departing radius that
connects tangentially to the contour element
„ R<0 for outside corners: Contour element is approached/
departed tangentially on a line
P Milling depth (overwrites the depth defined in the contour
definition)
I Maximum infeed (default: milling in one infeed)