
13. FUNCTIONS TO SIMPLIFY PROGRAMMING
13.1 Canned Cycles (G73, G74, G76, G78, G79, G80 to G89)
13.1.4 G80 0m.m.
canned cycle cancel
The canned cycle (GX3, G74, G76, G81 to G89) is canceiled and normal operation is
subsequently performed. The points R and bottom of the hole are also cancelled.
(That is,R = 0 and X= 0 for the incremental command.)
Other drilling data is also
cancelled.
13.1.5 G81 (drilling cycle, spot boring cycle)
G81
initial
Point
Point R
Bottom point
of the hole
13.1.6
G82 (drilling cycle, counter boring cycle)
G82
Dwell
0
0
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I
:
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P
@
Initial
point
Point R
Bottom point
of the hole
This is the same as G81. Dwell (specified by the P code) is performed at the bottom
of the hole and the spindle is raised.
Dwell at the bottom of the hole improves the
hole depth precision in blind hole drilling.