HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 118)

102 6 Programming: Programming Contours
Example NC blocks
N50 G00 G40 G90 X-30 Y+50 *
N60 G01 G41 X+0 Y+50 F350 *
N70 G26 R5 *
...
PROGRAM CONTOUR BLOCKS
...
N210 X+0 Y+50 *
N220 G27 R5 *
N230 G00 G40 X-30 Y+50 *
6.4 Path Contours — Cartesian
Coordinates
Overview of path functions
6.4 P
ath Cont
ours _ Car
tesian Coor
dinat
es
Starting position
First contour point
Tangential approach with radius R = 5 mm
Last contour point
Tangential departure with radius R = 5 mm
End point
Tool movement Function
Straight line at rapid traverse G00
Straight line with feed rate F G01
Chamfer between two straight lines G24
– I, J, K
Circular path in clockwise direction G02
Circular path in counterclockwise direction G03
Circular path corresponding to G05
active direction of rotation
Circular path with tangential G06
connection to previous contour element
Circular path with tangential G25
connection to previous and
following contour element
Required input
Coordinates of the end points of the straight line
Length of chamfer R
Coordinates of the circle center
Coordinates of the arc end point in connection with
I, J, K or additional circular radius R
Coordinates of the arc end point and circular
radius R
Coordinates of the arc end point
Rounding-off radius R
Gkap6.pm6 29.06.2006, 08:06 102