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G86 Bore rapid out (ISNC) or bore orient (BNC)
Hurco WinMax (NC) G-code · Mill
ISNC: feeds to depth, stops the spindle and rapids out, then restarts the spindle. In Basic NC G86 is the older bore orient cycle like G76.
Format
G86 X Y Z R F [K or L]
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
F | Feed rate |
Q or I J | BNC only, bore shift |
How it works
Modal, group 09. Cancel with G80.
Example program
T8 M06 (.750 BORING BAR)
G90 G54 G00 X2. Y2. S1000 M03 (BORE)
G43 H08 Z1. M08 (LENGTH OFFSET)
G98 G86 Z-.8 R.1 F4. (BORE, SPINDLE STOP, RAPID OUT)
…
G90 G54 G00 X2. Y2. S1000 M03 (BORE)
G43 H08 Z1. M08 (LENGTH OFFSET)
G98 G86 Z-.8 R.1 F4. (BORE, SPINDLE STOP, RAPID OUT)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- ISNC G86 leaves a retract line in the bore. Use G76 for a finish bore.
- A user defined G code can remap BNC G86 to G76 when running old programs in ISNC.
Related codes
G86 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Boring cycle, spindle stop |
| Haas NGC | Boring cycle, spindle stop and rapid out |
| Okuma OSP | Boring cycle, spindle stop |
| Mitsubishi M70 M80 | Boring cycle, spindle stop out |
| Brother Speedio | Boring cycle spindle stop |
| Fagor 8055 8065 | Boring, rapid withdrawal |
| LinuxCNC Tormach | Boring cycle, spindle stop, rapid out |
| Mach3 Mach4 | Bore, spindle stop, rapid out |
| Fadal | Bore in, spindle off, rapid out |
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Open G86 in the app All Hurco WinMax G-codes