CNC Machinist Calculator UltraHome › G-codes › Brother Speedio › G76
G76 Fine boring cycle
Brother Speedio G-code · Mill
Bores, stops the spindle oriented, shifts off the wall by Q and retracts without a drag mark.
Format
G76 X Y Z R Q F
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
Q | Shift amount, always positive |
F | Feed rate |
How it works
Modal, canned cycle. Cancel with G80.
Example program
G100 T08 G90 G54 G00 X1. Y1. G43 H08 Z1. S1500 M03 (FINISH BORE)
G98 G76 Z-.75 R.1 Q.005 F4. (FINE BORE)
G80 G00 Z1. (CANCEL)
G98 G76 Z-.75 R.1 Q.005 F4. (FINE BORE)
G80 G00 Z1. (CANCEL)
Example is in inch. Check offsets and clearances first.
Watch out for
- Set the boring bar tip to face the shift direction or it will gouge the bore.
- Keep Q small, like .005 to .010.
Related codes
G76 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Fine boring cycle |
| Haas NGC | Fine boring cycle |
| Mazak (EIA) | Fine boring cycle |
| Okuma OSP | Fine boring cycle |
| Mitsubishi M70 M80 | Fine boring cycle |
| Fagor 8055 8065 | Probing move while touching |
| LinuxCNC Tormach | Lathe multi pass threading |
| Mach3 Mach4 | Fine boring, Mach4 |
| Centroid CNC12 Acorn | Fine boring cycle |
| Hurco WinMax (NC) | Fine boring with orient |
| Fadal | Fine boring with oriented shift |
| Swiss (Citizen Star) | Multiple pass threading cycle |
Every G-code for Brother Speedio in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.
Open G76 in the app All Brother Speedio G-codes