HEIDENHAIN TNC 320 (77185x-01) Cycle programming - Manual (Page 227)

RULED SURFACE (Cycle 231, DIN/ISO: G231) 10.3
10
TNC 320 | User's Manual Cycle Programming | 3/2014
227
10.3 RULED SURFACE (Cycle 231, DIN/ISO:
G231)
Cycle run
1 From the current position, the TNC positions the tool in a linear
3-D movement to the starting point 1 .
2 The tool subsequently advances to the stopping point
2
at the
feed rate for milling.
3 From this point, the tool moves at rapid traverse
FMAX by the
tool diameter in the positive tool axis direction, and then back to
starting point
1 .
4 At the starting point 1 the TNC moves the tool back to the last
traversed Z value.
5 Then the TNC moves the tool in all three axes from point 1 in
the direction of point 4 to the next line.
6 From this point, the tool moves to the stopping point on this
pass. The TNC calculates the end point from point 2 and a
movement in the direction of point 3 .
7 Multipass milling is repeated until the programmed surface has
been completed.
8 At the end of the cycle, the tool is positioned above the
highest programmed point in the spindle axis, offset by the tool
diameter.