HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 273)

HEIDENHAIN CNC PILOT 4290 273
4.27 Milling Cy
cles Plunge at pre-drilled position O=1:
„ If “NF” is programmed: The cycle positions the milling
cutter above the first pre-drilled hole; the tool plunges and
mills the first area. If applicable, the cycle positions the tool
to the next pre-drilled hole and mills the next area, etc.
„ If “NF” is not programmed: The tool plunges at the current
position and mills the area. If applicable, position the tool to
the next pre-drilled hole and mill the next area, etc.
Plunge in a helical motion O=2, 3: The tool plunges at the
angle “W” and mills full circles with the diameter “WB.” As
soon as it reaches the milling depth “P,” the cycle switches
to face milling.
„ O=2 – manually: The cycle plunges at the current position
and machines the area that can be reached from this
position.
„ O=3 – automatically: The cycle calculates the plunging
position, plunges and machines this area. The plunging
motion ends on the starting point of the first milling path, if
possible. If the pocket consists of multiple areas, the cycle
successively machines all the areas.
Plunge in a reciprocating linear motion O=4, 5: The tool
plunges at the angle “W” and mills a linear path of the length
“WB.” You can define the position angle in “WE.” The cycle
then mills along this path in the opposite direction. As soon as
it reaches the milling depth “P,” the cycle switches to face
milling.
„ O=4 – manually: The cycle plunges at the current position
and machines the area that can be reached from this
position.
„ O=5 – automatically: The cycle calculates the plunging
position, plunges and machines this area. The plunging
motion ends on the starting point of the first milling path, if
possible. If the pocket consists of multiple areas, the cycle
successively machines all the areas. The plunging position
is determined from the type of figure and from “Q:”
„ Q0 (from the inside toward the outside):
– Linear slot, rectangle, polygon: Reference point of the
figure
– Circle: Circle center
– Circular slot, “free” contour: Starting point of the
innermost milling path
„ Q1 (from the outside toward the inside):
– Linear slot: Starting point of the slot
– Circular slot, circle: Not machined
– Rectangle, polygon: Starting point of the first linear
element
– “Free” contour: Starting point of the first linear element
(at least one linear element must exist)
Parameters—Milling