SYNTAX
G74 R..
G74 X..Z..Q..F..
Where
R RETRACTION
X DIAMETER
Z LENGTH
Q PECKING VALUE IN Z AXIS (MICRONS)
F FEEDRATE
Profile
Billet size⇒diameter 40,length 60
Tool used⇒drilling tool(T1)
NOTE:DRILL TIP HEIGHT FORMULA=Dx0.3
WHERE 'D' IS DIAMETER OF DRILL
Drill bit height(lip)=20x0.3=6
NC code
G21 G97 G98
G28 U0 W0
M06 T1
M03 S3000
G00 X0 Z2
G74 R1
G74 Z-41 Q2000 F60 //z=35(hole length)+6(lip)=41
G28 U0 W0
M05
M30
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