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G82 Spot drill and counterbore cycle / Spot drill canned cycle
Haas NGC G-code · Mill, Lathe
On mills: Spot drill and counterbore cycle
Feeds to the bottom, dwells for P, then rapids out. The dwell cleans up the bottom of a spot or counterbore.
Format
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
P | Dwell at the bottom in seconds |
F | Feed rate |
L | Number of holes for repeats in G91 |
How it works
Modal, canned cycle group 09. Cancel with G80.
Example program
G90 G54 G00 X1. Y1. S1500 M03 (HOLE POSITION)
G43 H05 Z1. M08 (APPROACH)
G82 G99 Z-.25 R.1 P.3 F6. (COUNTERBORE WITH .3 SEC DWELL)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Keep the dwell short, a few spindle turns is enough.
On lathes: Spot drill canned cycle
Feeds to the hole bottom, dwells for P, then rapids out. Use for spot drills and counterbores so the bottom cleans up.
Format
Addresses
| Address | What it does |
|---|---|
Z | Hole bottom |
R | R plane |
P | Dwell at the bottom in seconds |
F | Feed rate |
X | X position, diameter |
Y | Y position |
C | C axis position |
L | Number of repeats |
How it works
Modal, group 09. Cancel with G80.
Example program
G99 G97 S1200 M03 (FEED PER REV)
G00 G54 X0 Z.25 M08 (CENTERLINE)
G82 Z-.12 R.1 P.3 F.003 (SPOT WITH .3 SEC DWELL)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- P is modal inside the cycle.
- Cancel with G80 before moving to the next tool.
Related codes
G82 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Drilling cycle with dwell |
| Mazak (EIA) | Drilling cycle with dwell |
| Okuma OSP | Counterbore cycle with dwell |
| Mitsubishi M70 M80 | Drilling cycle with dwell |
| Brother Speedio | Drilling cycle with dwell |
| Fagor 8055 8065 | Drilling with dwell |
| LinuxCNC Tormach | Drill cycle with dwell |
| Mach3 Mach4 | Drill with dwell |
| Centroid CNC12 Acorn | Drilling cycle with dwell |
| Hurco WinMax (NC) | Drill with dwell or counterbore |
| Fadal | Spot drill or counterbore with dwell |
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