4 - 52 ISNC G Codes 704-0115-307 WinMax Lathe NC Programming
G72 - Stock Removal in Facing
G72 removes stock in a facing move. The cutting passes are determined by the profile.
Modal—No
F, S, and T functions specified in Profile blocks using G71 - Stock Removal in Turning, G72
- Stock Removal in Facing, and G73 - Pattern Repeating are ignored until a G70 is active.
G72 allows Linear and Circular interpolation.
Format
G72 U ____ R ____
G72 P ____ Q ____ U ____ W ____ F ____ S ____ T ____
Parameters
• U—depth of cut
• R—retract distance (retracts at 45
° angle)
• P—first sequence number of Profile
• Q—last sequence number of Profile
• U—second line with U is X stock finish (or finish tolerance)
• W—Z stock finish (or finish tolerance)
• F—cutting feedrate for roughing
• S—roughing spindle speed
• T—tool with offset xxxx
Example
The following sample program and figure illustrate G72:
%
O1000
G21
T0303
G97 S1700 M3
X115
Z2
G72 U6 R1
G72 P5 Q10 U-2 W-2 F250
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