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G96 Constant surface speed
Swiss (Citizen Star) G-code · Lathe
Keeps surface speed constant while X changes. On Citizen S1= names the main spindle.
Format
G96 S | G96 S1=
Addresses
| Address | What it does |
|---|---|
S | Surface feet per minute |
S1= S2= | Citizen spindle number, 1 main, 2 back |
How it works
Modal, group 02. Cancel with G97.
Example program
G50 S6000 (CLAMP)
G96 S1=400 M3 (CITIZEN MAIN SPINDLE CSS)
G00 X.55 Z-.02 T0100 (TOOL 1)
G96 S1=400 M3 (CITIZEN MAIN SPINDLE CSS)
G00 X.55 Z-.02 T0100 (TOOL 1)
Example is in inch. Check offsets and clearances first.
Watch out for
- Clamp RPM with G50 first. Cut-off with G96 can spin a small part very fast at 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 |
| Centroid CNC12 Acorn | Constant surface speed |
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