HEIDENHAIN CNC Pilot 4290 Pilot - Manual (Page 47)

47
Circular path
G2, G3 – incremental, G12, G13 – absolute center coordinates
The tool moves in a circular arc at the feed rate to the ”end point.” The
direction of rotation of G2/G3 or G12/G13 is shown in the graphic
support window.
The special feed rate applies to chamfer/rounding.
Parameters
X, Z: Diameter, length to end point (X diameter)
R:
Radius (0 < R
† 200 000 mm)
Q: Selection of intersection – default: Q=0
■ Q=0: Far intersection
■ Q=1: Near intersection
B: Chamfer/rounding
■ B is undefined: Tangential transition
■ B=0: Nontangential transition
■ B>0: Rounding radius
■ B<0: Chamfer width
E: Special feed-rate factor (0 < E
† 1) – default: 1
(special feed rate = active feed rate * E)
With G2, G3:
I, K:
Center point incremental (distance starting point – center point;
I radius)
With G12, G13:
I, K:
Absolute center (I radius)
Example: circular path G2
Example: circular path G12
Simple linear and cir
cular paths