HUST CNC H6D-T - Page 110

HUST CNC H6D-T Manual
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As shown in Fig. 3-36, all functions of G72 are same as G71, except that the cycle path is
parallel to the X-axis.
Details:
(1) N(ns)~N(nf) define the machining path of A1~B.
(2) No assignment of positioning commands on X-axis is allowed from A to A1.
(3) The feed-rate from A to A1 is either G00 or G01.
(4) The X and Z tool path from A1 to B must be incremental or decremental.
(5) No subprogram is available from N(ns) to N(nf).
(6) G72 is applicable to the following four cutting types. They are all parallel to
X-axis. Whether U and W are positive or negative (Fig. 3-37) is determined by the
direction of tool path.
Fig. 3-37 Cutting Path of G72 Compound Canned cycle
X
Z
U+,
W
-
B
A
A1
U-
,W
-
B
A
A1
U+
,
W+
B
A
A1
U-
,
W+
B
A
A1