CNC Machinist Calculator UltraHome › G-codes › Centroid CNC12 Acorn › G96
G96 Constant surface speed
Centroid CNC12 Acorn G-code · Lathe
S becomes surface speed in feet per minute in inch mode. RPM rises as X gets smaller, up to the G50 S limit or the machine maximum.
Format
G96 S
Addresses
| Address | What it does |
|---|---|
S | Surface speed in SFM or meters per minute |
How it works
Modal. Cancel with G97.
Example program
G20 G99 G40 G97 ; INCH, FEED PER REV, RPM MODE
T0101 ; TOOL 1 WITH OFFSET 1
G50 S2500 ; RPM LIMIT
G96 S800 M3 ; 800 SFM
…
T0101 ; TOOL 1 WITH OFFSET 1
G50 S2500 ; RPM LIMIT
G96 S800 M3 ; 800 SFM
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Set G50 S first or the spindle can reach full speed at X0.
- Use G97 for threading and drilling on center.
Related codes
G96 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Constant surface speed |
| Haas NGC | Constant surface speed on |
| Mazak (EIA) | Constant surface speed |
| Okuma OSP | Constant surface speed on |
| Mitsubishi M70 M80 | Constant surface speed on |
| Siemens 840D 828D | Constant cutting speed |
| Fagor 8055 8065 | Constant feed at cutting point (mill) |
| LinuxCNC Tormach | Constant surface speed |
| Mach3 Mach4 | Constant surface speed, Mach4 |
| Swiss (Citizen Star) | Constant surface speed |
Every G-code for Centroid CNC12 Acorn 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 G96 in the app All Centroid CNC12 Acorn G-codes