Circular Arc Ccw G2/G3 - HEIDENHAIN CNC PILOT 640 User Manual

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Circular arc ccw G2/G3

G2 and G3 move the tool in a circular arc at the feed rate to the end
point. The center dimensioning is incremental.
Direction of rotation:
G2: In clockwise direction
G3: In counterclockwise direction
Parameters:
X: Diameter
Z: Target point
R: Radius (0 < R <= 200000)
I: Center, incremental (radius value)
K: Center, incremental
Q: Intersect. pt. or Final point if the circular arc intersects a
line segment or another circular arc (default: 0)
0: Near point of intersection
1: Far point of intersection
BR: Chamf./round. – defines the transition to the next contour
element
When entering a Chamf./round., program the theoretical end
point.
No entry: Tangential transition
BR = 0: No tangential transition
BR > 0: Rounding radius
BR < 0: Width of chamfer
BE: Special feed rate factor for Chamf./round. (default: 1)
Special feed rate = active feed rate * BE (range: 0 < BE <= 1)
Programming:
X and Z absolute, incremental, modal or ?
Example: G2, G3
N1 T3 G95 F0.25 G96 S200 M3
N2 G0 X0 Z2
N3 G42
N4 G1 Z0
N5 G1 X15 B-0.5 E0.05
N6 G1 Z-25 B0
N7 G2 X45 Z-32 R36 B2
N8 G1 A0
N9 G2 X80 Z-80 R20 B5
N10 G1 Z-95 B0
N11 G3 X80 Z-135 R40 B0
N12 G1 Z-140
N13 G1 X82 G40
. . .
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DIN/ISO programming | Linear and circular movements
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017