HEIDENHAIN TNC 620 (340 56x-03) - Manual (Page 195)

HEIDENHAIN TNC 620 195
6.6 P
a
th Cont
ours—FK F
ree Cont
our
Pr
ogr
a
mming (A
dv
anced Pr
ogr
a
mming
F
e
at
ur
es Sof
tw
a
re
Option)
6.6 Path Contours—FK Free
Contour Programming
(Advanced Programming
Features Software Option)
Fundamentals
Workpiece drawings that are not dimensioned for NC often contain
unconventional coordinate data that cannot be entered with the gray
path function keys. For example:
„ Known coordinates on the contour element or in its proximity
„ Coordinate data can be referenced to another contour element
„ Directional data and data regarding the course of the contour
You can enter such dimensional data directly by using the FK free
contour programming function. The TNC derives the contour from the
known coordinate data and supports the programming dialog with the
interactive programming graphics. The figure at upper right shows a
workpiece drawing for which FK programming is the most convenient
programming method.
Y
X
0 5 10 20
88.15°
¬36
45°
¬21
18
R4
28
R2.5