HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 211)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
211
4.4 Cont
our f
o
rm
elements
Example: G37 Concatenated
. . .
AUXILIARY CONTOUR ID"G37_Concatenated"
N37 G0 X0 Z0
N 38 G1 X20
N 39 G1 Z-30
N 40 G37 F2 [metric ISO]
N 41 G1 X30 Z-40
N 42 G37 Q2
N 43 G1 Z-70
N 44 G37 F2
. . .
 Before G37, program a linear contour element as a
reference.
 Machine the thread with G31.
 For standard threads, the parameters P, R, A and W are
defined by the Control.
 Use Q=12 if you wish to use individual parameters.
Danger of collision!
The thread is generated to the length of the reference
element. Another linear element without undercut is to be
programmed as overrun.