HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 148)

148
4.6 Basic Cont
our Elements
Example: G1-Geo
Circular arc of turning contour G2/G3-Geo
G2/G3 defines a circular arc in a contour with incremental center
dimensioning. Direction of rotation (see help graphic):
„ G2: In clockwise direction
„ G3: In counterclockwise direction
. . .
FERTIGTEIL [FINISHED PART]
N2 G0 X0 Z0 Starting point
N3 G1 X50 B-2 Perpendicular line with chamfer
N4 G1 Z-20 B2 Horizontal line with radius
N5 G1 X70 Z-30 Oblique cut with absolute target coordinates
N6 G1 ZI-5 Horizontal line segment, incremental
N7 G1 XI10 A30 Incremental and angle
N8 G1 X92 ZI-5 Incremental and absolute mixed
N9 G1 X? Z-80 Calculate the X coordinate
N10 G1 X100 Z-100 A10 End point and angle with unknown starting point
. . .
Parameters
X End point of contour element (diameter value)
Z End point of contour element
I Center (distance from starting point to center as radius)
K Center (distance from starting point to center)
R Radius
Q Point of intersection. End point if the circular arc intersects a
line segment or another circular arc (default: 0):
„ Q=0: Near point of intersection
„ Q=1: Far point of intersection