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Enhanced Level Commands

4.1 Program support functions (1)

04.07

4-116

SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition

4.1.10 Drilling cycle (G89), retract using G01

Format

G89 X... Y... R... P... F... K... ;

X,Y: Hole position

Z: Distance from point R to the bottom of the hole

R: Distance from the initial level to point R

P: Dwell time at the bottom of a hole

F: Cutting feed rate

K: Number of repeats

G89 (G98) G89 (G99)

Point Z

Initial level

Point R

Point Z

Point R level

Point R

Fig. 4-16 Boring cycle (G89)

Explanations

This cycle is almost the same as G86 except that this cycle performs a dwell at the

bottom of the hole.

Use a miscellaneous function (M code) to rotate the spindle before specifying G89.

Axis switching

The canned cycle must be canceled before the drilling axis can be changed.

Drilling

Drilling is not performed in a block that does not contain X, Y, Z, R, or any other

axes.

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