HEIDENHAIN CNC Pilot 4290 - Manual (Page 97)

HEIDENHAIN CNC PILOT 4290 85
Programming X, Z: Absolute,
incremental, modal or ”?”
Line segment in a contour G1-Geo
Parameters
X, Z: End point of contour element (X diameter)
A: Angle to rotary axis – for angle direction see graphic support
window
Q: Selection of intersection – default: 0. End point, if the line
segment intersects a circular arc.
■ Q=0: near intersection
■ Q=1: distance intersection
B: Chamfer/rounding arc – transition to the next contour element.
Program the theoretical end point when you enter a chamfer/
rounding arc.
■ No entry in B: tangential transition
■ B=0: no tangential transition
■ B>0: Radius of the rounding arc
■ B<0: Width of chamfer
E: Special feed factor for chamfer/rounding arc in a finishing cycle
(0 < E <= 1) – default: 1
(special feed rate = active feed rate * E)
Circular arc in a contour
G2/G3 Geo – incremental center coordinates
G12/G13 Geo – absolute center coordinates
Direction of rotation: see help graphic
Parameters
X, Z: End point of contour element (X diameter)
R: Radius
Q: Selection of intersection – default: 0. End point, if the circular arc
intersects a circular arc.
■ Q=0: Far intersection
■ Q=1: Near intersection
B: Chamfer/rounding arc – transition to the next contour element.
Program the theoretical end point when you enter a chamfer/
rounding arc.
■ No entry in B: tangential transition
■ B=0: no tangential transition
■ B>0: Radius of the rounding arc
■ B<0: Width of chamfer
E: Special feed factor for chamfer/rounding arc in a finishing cycle
(0 < E <= 1) – default: 1
(special feed rate = active feed rate * E)
G2/G3 – incremental center:
I:
Center (distance from starting point to center as radius)
K: Center (distance from starting point to center)
G12/G13 – absolute center:
I:
Center (radius)
K: Center
Programming X, Z: Absolute, incremental, modal or ”?”
G13 Geo
G2 Geo
4.5 Geometry Commands