Fixed cycle OFF
When performing predetermined sequences of machining operations such as positioning, hole machining, boring and tapping, these functions permit to command in a single block the machining program which is normaly commanded in several blocks. In other words, they simplify the machining program. The following types of fixed cycles for hole machining are available. Hole machining Hole machining Operation at hole Return G-code Application axis operation bottom movement G80 — — — — Cancel Cutting feed, G283 Z Dwell Rapid feed Deep hole drilling cycle intermittent feed Dwell, spindle reverse G284 Z Cutting feed Cutting feed Tapping cycle rotation G285 Z Cutting feed Dwell Cutting feed Boring cycle G284.2 Z Cutting feed Spindle reverse rotation Cutting feed Synchronous tapping cycle Cutting feed, G287 X Dwell Rapid feed Deep hole drilling cycle intermittent feed Dwell, spindle reverse G288 X Cutting feed Cutting feed Tapping cycle rotation G289 X Cutting feed Dwell Cutting feed Boring cycle G288.2 X Cutting feed Spindle reverse rotation Cutting feed Synchronous tapping cycle […]
G80 is modal (group 09) — it stays in effect until another code of the same group replaces it.
Default: G80 is selected automatically in its group on power-on or on reset with modal initialization.
A. Face hole machining G28 X_ C_ Z_ R_ Q_ P_ I_ F_ K_ M_ D_; Spindle (for G284.2 only) M-code Number of repetitions Hole machining data Hole positioning data Hole machining mode (G283, G284, G284.2, G285) B. Outside hole machining G28 Z_ C_ X_ R_ Q_ P_ I_ F_ K_ M_; M-code Number of repetitions Hole machining data Hole positioning data Hole machining mode (G287, G288, G288.2, G289)
- Note : In order that it may function correctly, do not give a command of hole machining fixed
- In order that it may function correctly, do not give a command of hole machining fixed
Mazak PROGRAMMING MANUAL for EIA/ISO PROGRAM, manual H747PB0030E, section 13-3 Hole Machining Fixed Cycles: G80, G283 to G289, p. 3-11, 13-32, 13-40, 13-41. Reference and explanation only — not a reproduction of the manual.