Haas VF Series Operator's Manual

186
G CODES
96-8000
June 1999
G74 Reverse Tap Canned Cycle Group 09
F Feed Rate in inches (mm) per minute
L Number of repeats
R Position of the R plane
X Optional X-axis motion command
Y Optional Y-axis motion command
Z Position of bottom of tap
This G code is modal in that once activated, every motion of X and/or Y will cause this canned cycle to be
executed until it is canceled or another canned cycle is selected. Note that operation of this cycle is different if
the rigid tapping option is installed and selected. When rigid tapping is used, the ratio between the feed rate
and spindle speed must be precisely the thread pitch being cut.
You do not need to start the spindle CCW before this canned cycle. The control does this automatically.

Haas VF Series Specifications

General

Machine Type	Vertical Machining Center
Control	Haas CNC Control
Z-Axis Travel	20-30 inches (varies by model)
Y-Axis Travel	16 - 30 inches (varies by model)
Spindle Motor	20-30 hp (depending on model)
Tool Capacity	20-40 tools (varies by model)