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G84 Tapping cycle
Hurco WinMax (NC) G-code · Mill
Taps to depth, reverses and feeds out. In ISNC it is right hand only and M29 first makes it rigid. In BNC M03 or M04 picks right or left hand.
Format
G84 X Y Z R [P] F [Q] [K or L]
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
P | Dwell at bottom and after leaving, ISNC |
F | Feed, RPM divided by threads per inch |
Q | Peck depth, ISNC rigid with M29 only |
How it works
Modal, group 09. Cancel with G80. M29 ends with G00 to G03 or G80.
Example program
T5 M06 (.250-20 TAP)
G90 G54 G00 X1. Y1. S500 M03 (FIRST HOLE)
G43 H05 Z1. M08 (LENGTH OFFSET)
M29 (RIGID TAP ON)
…
G90 G54 G00 X1. Y1. S500 M03 (FIRST HOLE)
G43 H05 Z1. M08 (LENGTH OFFSET)
M29 (RIGID TAP ON)
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Feed override is ignored and feed hold waits until the tap is out. In rigid mode feed can be overridden.
- If S and direction are missing, the cycle takes them from the tool library.
- For angled taps on a transform plane turn off the perpendicular check with M252 and back on with M253.
- M28 recovers a tap after an abort in the hole.
Related codes
G84.2 · G84.3 · G74 · M29 · M28 · G80
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 |
| Fagor 8055 8065 | Tapping canned cycle |
| LinuxCNC Tormach | Right hand tapping cycle |
| Mach3 Mach4 | Tapping cycle |
| Centroid CNC12 Acorn | Right hand tapping cycle |
| Fadal | Right hand tap, floating holder |
| Swiss (Citizen Star) | Face tapping cycle |
Every G-code for Hurco WinMax (NC) 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 G84 in the app All Hurco WinMax G-codes