HEIDENHAIN TNC 426, User Manual

Page: 192 / 502

166 6 Programming: Programming Contours
6.6 P
a
th Cont
ours—FK F
ree Cont
our Pr
ogr
a
mming
Data relative to block N: Direction and distance of the contour
element
Example NC blocks
Data relative to block N: Circle center CC
Example NC blocks
Known data Soft key
Angle between a straight line and another element
or between the entry tangent of the arc and another
element
Straight line parallel to another contour element
Distance from a straight line to a parallel contour
element
17 FL LEN 20 AN+15
18 FL AN+105 LEN 12.5
19 FL PAR 17 DP 12.5
20 FSELECT 2
21 FL LEN 20 IAN+95
22 FL IAN+220 RAN 18
Known data Soft key
Cartesian coordinates of the circle
center relative to block N
Polar coordinates of the circle center
relative to block N
12 FL X+10 Y+10 RL
13 FL ...
14 FL X+18 Y+35
15 FL ...
16 FL ...
17 FC DR– R10 CCA+0 ICCX+20 ICCY-15 RCCX12 RCCY14
X
Y
105°
12.5
12.5
95°
220°
15°
20
20
X
Y
18 10
35
10
R10
20
CC
15