HEIDENHAIN CNC Pilot 4290 - Manual (Page 255)

HEIDENHAIN CNC PILOT 4290 243
Line segment in end-face contour
Use the menu symbol to select the direction of the line and assign it a
dimension.
Parameters
XK,YK: End point in Cartesian coordinates
XKi,YKi: Distance from starting point to end point.
P, α: End point in polar coordinates (reference angle α: positive XK
axis)
W: Angle of the line (for reference see illustration)
WV: Angle to the preceding element
WN: Angle to the successor element
WV, WN:
■ The angle leads from the preceding/succeeding element
counterclockwise to the new element.
■ Arc as preceding/succeeding element: Angle to tangent.
L: Length of line
Tangential/nontangential: Specify the transition to the
next contour element
End point must not be the starting point
(no full circle).
6.6 C-Axis Contours
Continued
Circular arc in end-face contours
Use the menu symbol to select the direction of arc rotation and give
the arc a dimension.
Parameters ”end point of arc”
XK,YK: End point in Cartesian coordinates
XKi,YKi: Distance from starting point to end point
P, α: End point in polar coordinates (reference angle a: positive XK
axis)
Pi, αi: End point polar, incremental. Pi: Linear distance from starting
to end point; Reference of ai: 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.
Parameters ”center of arc”
I, J:
Center in Cartesian coordinates
Ii, Ji: Difference from starting point to center point in XK, YK
direction
β, PM: Center in polar coordinates (reference angle b: positive XK
axis)
βi, PMi: Center polar, incremental (PMi: linear distance from starting
point to center; reference of βi: angle between imaginary line
intersecting the starting point and parallel to the XK-axis, and
another line from the starting point to the center)