HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 424)

424
6.8 C-Axis Cont
ours
Front or rear face: Circular element
This function defines a circular arc on the front/rear face.
Parameters
End point of arc
XK End point in Cartesian coordinates
YK End point in Cartesian coordinates
XKi Distance from starting point to end point
YKi Distance from starting point to end point
a End point in polar coordinates (reference angle: positive XK
axis)
P End point in polar coordinates
ai End point polar, incremental (reference angle: Between an
imaginary line intersecting the starting point and parallel to
the XK axis, and another line from the starting point to the
end point)
Pi End point polar, incremental (Pi: linear distance from starting
point to end point)
Center of arc
I Center in Cartesian coordinates
J Center in Cartesian coordinates
Ii Distance from starting point to center point in XK direction
Ji Distance from starting point to center point in YK direction
b Center point in polar coordinates (reference angle: positive
XK axis)
PM Center point in polar coordinates
bi Center point polar, incremental (reference angle: Angle
between an imaginary line intersecting the starting point and
parallel to the XK axis, and another line from the starting point
to the center point)
PMi Center point polar, incremental (linear distance from starting
point to center point)