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G84 Tapping canned cycle / Turning cycle, arc sections (lathe)
Fagor 8055 8065 G-code · Mill, Lathe
On mills: Tapping canned cycle
Tapping to depth I. R0 is floating tapping, R1 rigid tapping with spindle orient, R2 rigid without orient. J speeds up the return, B and H give peck tapping.
Format
Addresses
| Address | What it does |
|---|---|
G98 or G99 | Return to initial plane or reference plane |
X Y | Hole position |
Z | Reference plane, absolute or incremental from the initial plane |
I | Depth, absolute or incremental from the reference plane |
K | Dwell in hundredths of a second |
R | R0 normal, R1 rigid with orient, R2 rigid without orient |
J | Return feed factor for rigid tapping |
B H | Peck step and retract for rigid peck tapping |
How it works
Modal canned cycle. Cancel with G80.
Example program
G00 G90 X1.0 Y1.0 Z1.0 S500 M03 (ABOVE HOLE)
G84 G99 Z0.2 I-0.6 R1 F25.0 (RIGID TAP, 500 RPM TIMES 0.05 PITCH)
X2.0 (NEXT HOLE)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Feed F equals rpm times pitch in G94. 500 rpm with 20 TPI is F25.0.
- Without R the cycle is normal tapping, so use R1 or R2 for rigid.
- On 8060 and 8065, G84 is also listed as tapping.
On lathes: Turning cycle, arc sections (lathe)
Rough turns a section with an arc from X Z to Q R. I K give the arc center.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
Addresses
| Address | What it does |
|---|---|
X Z | Start of the arc section |
Q R | End of the arc section |
C | Depth per pass |
I K | Arc center |
L M | Finish stock |
H | Finishing feed |
How it works
Not modal.
Example program
G95 G96 S400 M03 (CSS)
G84 X1.0 Z0 Q1.5 R-0.25 C0.04 D0.04 F0.008 I0.25 K0 (TURN ARC)
Example is in inch. Check offsets and clearances first.
Watch out for
- On Fagor mills G84 is tapping.
- Check whether I K are incremental in your manual.
Related codes
G84 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Tapping cycle |
| Haas NGC | Tapping canned cycle |
| Mazak (EIA) | Tapping cycle |
| Okuma OSP | Tapping cycle |
| Mitsubishi M70 M80 | Tapping cycle |
| Brother Speedio | Tapping cycle |
| LinuxCNC Tormach | Right hand tapping cycle |
| Mach3 Mach4 | Tapping cycle |
| Centroid CNC12 Acorn | Right hand tapping cycle |
| Hurco WinMax (NC) | Tapping cycle |
| Fadal | Right hand tap, floating holder |
| Swiss (Citizen Star) | Face tapping cycle |
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Open G84 in the app All Fagor 8055 8065 G-codes