HEIDENHAIN CNC Pilot 4290 Pilot - Manual (Page 67)

67
Contour-parallel roughing G830
G830 machines (roughs) the contour area defined by ”NS, NE” parallel
to the contour.
Parameters
NS, NE: Starting block number, end block number (from the contour
description)
P: Maximum approach - Maximum infeed distance
I, K: Allowances (I diameter value) – default: 0
X/Z: Cutting limit (X diameter value)
A, W: Approach angle, departure angle (reference: Z axis)
■ Approach angle – default: 0°/180° (parallel to Z axis)
■ Departure angle – default: 90°/270° (perpendicular to Z axis)
Q: Type of retraction after machining – default: 0
■ Q=0: return to starting point (first X and then Z direction)
■ Q=1: position in front of finished contour
■ Q=2: move to clearance height and stop
V: Machining chamfers/roundings at start/end of contour – default:
0; chamfer/rounding is machined:
■ V=0: at beginning and end
Cont
our
-det
er
mined
tu
rning cy
cles
D G22 G23 G23 G25 G25 G25
= H0 H1 H4 H5/6 H7..9
0 • • • • • •
1 • • • – – –
2 • • – • • •
3 • • – – – –
4 • • – – • –
„•“: Skipping elements
■ V=1: at beginning
■ V=2: at end
■ V=3: no machining at start or end
■ V=4: only single chamfers/roundings are
machined – not the base element
(requirement: the contour consists of a
contour element)
D: Omit element (influences the machining of
undercuts, free rotations: see table) – default: 0
• Cutter radius compensation: is carried out
• Offsets (G57/G58): are effective