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G85 Boring cycle, feed out
Mitsubishi M70 M80 G-code · Mill
Feeds to Z and feeds back out to the R plane. Used for reaming and boring.
Format
G85 X Y Z R F
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
F | Feed rate both ways |
How it works
Modal, canned cycle group 09. Cancel with G80.
Example program
G90 G54 G00 X1. Y1. S500 M03 (REAMER START)
G43 H09 Z1. M08 (LENGTH COMP)
G99 G85 Z-.75 R.1 F6. (REAM)
G80 G00 Z1. (CANCEL)
G43 H09 Z1. M08 (LENGTH COMP)
G99 G85 Z-.75 R.1 F6. (REAM)
G80 G00 Z1. (CANCEL)
Example is in inch. Check offsets and clearances first.
Watch out for
- Spindle keeps turning on the way out. Good for reamers.
Related codes
G85 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Boring cycle, feed out |
| Haas NGC | Boring cycle, feed in and feed out |
| Mazak (EIA) | Reaming cycle |
| Okuma OSP | Boring cycle, feed out |
| Brother Speedio | Boring cycle feed out |
| Fagor 8055 8065 | Reaming canned cycle |
| LinuxCNC Tormach | Boring cycle, feed out |
| Mach3 Mach4 | Bore, feed out |
| Centroid CNC12 Acorn | Boring cycle, feed out |
| Hurco WinMax (NC) | Boring, feed in and feed out |
| Fadal | Bore in, bore out |
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