HEIDENHAIN CNC Pilot 4290 Pilot - Manual (Page 65)

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Longitudinal roughing G810 / Face roughing G820
G810/G820 cuts (roughs) the contour range defined by ”NS, NE.”
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
E: Approach behavior
■ E=0: descending contours are not machined
■ E>0: approach behavior
■ no input: feed rate reduced depending on approach angle –
maximum reduction: 50%
X/Z: Cutting limit (X diameter value)
H: Type of contour smoothing – default: 0
■ H=0: smoothing after each cut
■ H=1: lift off at under 45°, smoothing after last cut
■ H=2: lift off at under 45°, no smoothing
A: Approach angle (reference: Z axis)
■ G810 – default: 0°/180° (parallel to Z axis)
■ G820 – default: 90°/270° (perpendicular to Z axis)
W: Departing angle (reference: Z axis)
■ G810 – default: 90°/270° (perpendicular to Z axis)
■ G820 – default: 0°/180° (parallel to Z axis)
Q: Type of retraction after machining – default: 0
n Q=0: return to starting point (G810: first X and then Z direction;
G820: first Z and then X direction)
■ Q=1: position in front of finished contour
■ Q=2: move to clearance height and stop
Contour roughing, longitudinal G810
Continued
Cont
our
-det
er
mined
tu
rning cy
cles