HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 213)

HEIDENHAIN CNC PILOT 4290 213
4.20 Cont
our
-Based T
u
rn
ing Cy
cles E Approach behavior
„ E=0: Descending contours are not machined.
„ E>0: Plunging feed rate
„ No input: Feed rate reduction depending on the plunge
angle – maximum 50%
X Cutting limit in X direction (diameter value) – (default: no
cutting limit)
Z Cutting limit in Z direction (default: no cutting limit)
H Type of departure (default: 0)
„ H=0: Machines contour outline after each pass
„ H=1: Retracts at 45°; contour smoothing after last pass
„ H=2: Retracts at 45°; no contour smoothing
A Approach angle (reference: Z-axis) – (default: 0°/180°, parallel
to Z-axis)
W Departing angle (reference: Z-axis) – (default: 90°/270°;
perpendicular to Z-axis)
Q Type of retraction at cycle end (default: 0)
„ Q=0: Return to starting point (first X, then Z direction)
„ Q=1: Positions in front of the finished contour
„ Q=2: Retracts to safety clearance and stops
V Identifier beginning/end (default: 0)
A chamfer/rounding arc is machined:
„ V=0: At start and end
„ V=1: At start
„ V=2: At end
„ V=3: No machining
„ V=4: Chamfer/rounding arc is machined—not the basic
element (prerequisite: Contour section with one element)
D Omit elements. The following undercuts, relief turns and
recesses are not run (default: 0):
G22 G23
H0 G23
H1 G25
H4 G25
H5/6 G25 H7
to H9
D=0 • • • • • •
D=1 • • • – – –
D=2 • • – • • •
D=3 • • – – – –
D=4 • • – • • –
“•”: Do not machine the elements
Parameters