43
M3 S2000
；
FWD
G90 G99 G83 X300. Y-250. Z-150. R-100. Q15. F120.
；
Positioning, drill hole 1, then returns to the R point
Y-550.
；
Positioning, drill hole 2, then returns to the R point
Y-750.
；
Positioning, drill hole 3, then returns to the R point
X1000.
；
Positioning, drill hole 4, then returns to the R point
Y-550.
；
Positioning, drill hole 5, then returns to the R point
G98 Y-750.
；
Positioning, drill hole 5, then returns to initial plane
G80 G28 G91 X0 Y0 Z0
；
Return to the reference point
M5
；
Stop rotating spindle
M30
；
Program end
13.3.6 Boring Loop (G85)
The loop is used for boring, when arrived at the bottom of the hole, the cutting tool return in cutting feed
rate.
Instruction format:
G85 X_ Y_ Z_ R_ F_ K_
；
X_ Y_
：
Location data
Z_
：
Absolute coordinates of the bottom of the hole
（
absolute value method
）
The distance from R point to the bottom of the hole
（
incremental value method
）
R_
：
Absolute coordinates of the bottom of the R point
（
absolute value method
）
The distance from the initial position to the R point
（
incremental value method
）
F_
：
Cut feed speed
K_
：
Times of repetition
