Haas 96-8000 - G77 Back Bore Canned Cycle (Group 09)

166
96-8000 Rev AC
May 2010
.
X
Z
Y
X
Z
Y
G98 Initial Starting Plane
Initial Starting Plane
G99 Rapid Plane
Shift
Shift
R Plane
R Plane
G76 Fine Boring Canned Cycle
Z Depth
Feed
Rapid Move
Begin or end of stroke
Shift
Z Depth
In addition to boring the hole, this cycle will shift the X and/or Y axis prior to
retracting in order to clear the tool while exiting the part. If Q is used Setting 27
determines the shift direction. If Q is not specied, the optional I and J values
are used to determine the shift direction and distance.
G77 Back Bore Canned Cycle (Group 09)
F Feedrate in inches (or mm) per minute
I Shift value along the X-axis before retracting, if Q is not specied
J Shift value along the Y-axis before retracting, if Q is not specied
L Number of holes to bore if G91 (Incremental Mode) is used
Q The shift value, always incremental
R Position of the R plane (position above the part)
X X-axis location of hole
Y Y-axis location of hole
Z Position of the Z-axis at the bottom of hole
In addition to boring the hole, this cycle shifts the X and/or Y axis prior to and
after cutting in order to clear the tool while entering and exiting the part (see
G76 for an example of a shift move). Setting 27 determines the shift direction.
If Q is not specied, optional I and J values are used to determine shift direc-
tion and distance.