HEIDENHAIN CNC Pilot 4290 - Manual (Page 256)

6 TURN PLUS 244
Other parameters
R:
Arc radius
Tangential/nontangential: Specify the transition to the
next contour element
”Angle” parameters
WA:
Angle between positive XK-axis and tangent in starting point
of arc
WE: Angle between positive XK-axis and tangent in end point of
arc
WV: Angle between preceding element and tangent in the starting
point of the arc
WN: Angle between tangent in arc end point and following element
WV, WN:
■ The angle leads from the preceding/succeeding element
counterclockwise to the new element.
■ Arc as preceding/succeeding element: Angle to tangent.
Single hole
”Reference point” parameters
XK,YK: Hole center in Cartesian coordinates
α, PM: Center of hole in polar coordinates (reference angle α: positi-
ve XK-axis)
The hole can contain the following elements:
■ Centering
■ Core drilling
■ Countersinking
■ Thread
6.6 C-Axis Contours