CNC Machinist Calculator UltraHome › G-codes › Mazak (EIA) › G72
G72 Facing roughing cycle, X direction
Mazak (EIA) G-code · Lathe
Roughs the profile between P and Q with cuts along X, like facing. Good for large flange faces.
Format
G72 W R then G72 P Q U W F
Addresses
| Address | What it does |
|---|---|
W first block | Depth of cut in Z |
R | Retract amount |
P Q | First and last block of the profile |
U | Finish stock in X |
W second block | Finish stock in Z |
F | Roughing feed |
How it works
Non-modal.
Example program
T0101 (FACE ROUGH TOOL)
G96 S600 M03 (600 SFM)
G00 X3.1 Z.1 M08 (START POINT)
G72 W.05 R.02 (.05 DEPTH PER PASS)
…
G96 S600 M03 (600 SFM)
G00 X3.1 Z.1 M08 (START POINT)
G72 W.05 R.02 (.05 DEPTH PER PASS)
…
The full 9-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- The first profile block must move Z only.
- W means two different things in the two blocks.
Related codes
G72 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Stock removal in facing, rough cycle |
| Haas NGC | Bolt holes along an angle |
| Okuma OSP | Compound thread cycle, transverse |
| Mitsubishi M70 M80 | Face rough cutting cycle |
| Heidenhain TNC (ISO) | Scaling factor |
| Fagor 8055 8065 | Scaling factor |
| LinuxCNC Tormach | Lathe roughing cycle, facing along X |
| Centroid CNC12 Acorn | Rough facing cycle |
| Swiss (Citizen Star) | Rough facing cycle |
Every G-code for Mazak (EIA) 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 G72 in the app All Mazak G-codes