Some more details about peck tapping ...
Two types of peck rigid tapping cycles are
available:
• High-speed peck rigid tapping cycle, and
• Deep hole peck rigid tapping cycle.
The first type is similar to G73, in the sense that retraction
is very small. The second type, on the other hand, is similar to
G83, where the retraction is up to the R-point, after every peck.
So, the first type is faster, but the second type is more suitable
for very deep holes. Refer to the tool path sketches of G73 and
G83, which resemble the tool paths of the two types of peck rigid
tapping cycles, except for the speeds along the hole axis.
For peck rigid tapping, simply insert a Q-word in the usual
syntax for the tapping cycles. Q is the peck length in mm.
Absence of Q or specifying Q0 makes the tapping cycle work in
the usual mode, i.e., without pecking. Set parameter 5200#5 (the
sixth bit, counting from the right, of parameter 5200) to 0 for the
high-speed peck tapping cycle, and to 1 for the deep hole peck
tapping cycle. The retraction distance can be set through parameter 5213
(for both types of pecking cycles). Normally, the retraction (and
the forward motion up to the specified distance above the tapping
depth in the previous peck, in the deep hole peck rigid tapping
cycle) is at the feedrate, but it can be made faster by enabling
rapid retraction feature through parameter 5200#4.
