HEIDENHAIN CNC Pilot 4290 Description of the Y axis - Manual (Page 16)

Y Axis 16
Circular arc G182/G183 Geo
G182/G183 defines a circular arc in a contour of the YZ plane. The
direction of rotation is visible in the help graphic.
”Chamfer/rounding B” defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point of the contour element.
”Intersection selection Q” specifies the end point if the path
intersects an arc and the end point is not defined.
Parameters
Y, Z: End points
J, K: Center (J=Y direction, K=Z direction)
R: Radius
Q: Selection of point of intersection – default: 0
■ For transition to line segment:
Q=0: Near intersection
Q=1: Far intersection
■ For transition to circular arcs:
Q=0: Far intersection
Q=1: Near intersection
B: Chamfer/rounding
■ B no entry: Tangential transition
■ B=0: Nontangential transition
■ B>0: Radius of rounding
■ B<0: Width of chamfer
Programming
■ Y, Z: Absolute, incremental, modal or ”?”
■ J, K: Absolute or incremental.
■ End point cannot also be the starting point (no
complete circle)
2.2.2
Contours
in
the
YZ
Plane
(Side
View)
G182
G183
Y_4290BH.pm6 08.03.2005, 08:35 16