G81 Drilling Cycle

Format

G81 X_Y_Z_R_F_ K_

Machining Process

Machining process of G81 is as illustrated as follows:

1. The tool moves to the specified hole position (X, Y) at G00 speed.
2. The tool goes down to the specified point R at G00 speed.
3. The tool moves down to point Z at the bottom of the hole at G01 speed.
4. The tool returns to point R at G01 speed.

Programming Example

F1200 S600

G90

G00 X0 Y0 Z10 'move to the initial point

G17

G90 G99 'set the coordinates of point R, point Z and hole 1, with machining speed as 800

G81 X5 Y5 Z-10 R-5 F800

X25 'hole 2

Y25 'hole 3

G98 X5 'hole 4, and return to initial point

X10 Y10 Z-20 'hole 5, and set the new point Z as -20

G80

M02