G88 drilling cycle <CYCLE BORE8(212)>


G88 boring canned cycle performs rapid approach to the safe level, work feedrate boring with dwell at the hole depth level, spindle stop at the hole depth level and manual retract to the safe plane level.

 

Img5_4_31_9

 

G88 Cycle includes:

  • Rapid approach to the <Z safe> level.
  • Work feedrate travel to the <Z min> level.
  • <Dwell>.
  • <Spindle stop>.
  • Manual retract to the <Safe plane> level.
  • Restore spindle rotation direction and speed.

 

Command:

CYCLE BORE8(212), A a, MMPM(315), N nm, F f, P p, DWELL(279) h, T t

or

CYCLE BORE8(212), A a, MMPR(316), M nm, F f, P p, DWELL(279) h, T t

 

Parameters:

Parameter

CLD array

Description

BORE8(212)

CLD[1]

CLD.Type

Cycle type 212 (BORE8).

a

CLD[2]

CLD.A

Hole depth in current measure units (mm or inches).

MMPM(315)

MMPR(316)

CLD[3]

CLD.MMPM

Feedrate measure units:

315 (MMPM) – mm per minute (inches per minute),

316 (MMPR) – mm per revolution (inches per revolution).

nm

CLD[4]

CLD.NM

Work feedrate value.

f

CLD[5]

CLD.F

Safe level.

 

CLD[6],

CLD[7]

 

Reserved.

p

CLD[8]

CLD.P

Safe plane level.

DWELL

CLD[9]

CLD.DWELL

Dwell time keyword.

h

CLD[10]

CLD.H

Dwell time in seconds.

t

CLD[11]

CLD.Top

Hole top level.

 

 

 

See also:

Hole machining cycles <CYCLE>