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G97 Constant surface speed cancel
Centroid CNC12 Acorn G-code · Lathe
Cancels G96. S is spindle speed in RPM. This is the default.
Format
G97 S
Addresses
| Address | What it does |
|---|---|
S | Spindle speed in RPM |
How it works
Modal. Default.
Example program
G20 G99 G40 G97 ; INCH, FEED PER REV, RPM MODE
T0101 ; TOOL 1 WITH OFFSET 1
G97 S600 M3 ; 600 RPM FOR THREADING
G0 X1.1 Z.25 M8
T0101 ; TOOL 1 WITH OFFSET 1
G97 S600 M3 ; 600 RPM FOR THREADING
G0 X1.1 Z.25 M8
Example is in inch. Check offsets and clearances first.
Watch out for
- Give a new S with G97 or the spindle keeps the last CSS speed.
Related codes
G97 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Constant surface speed cancel |
| Haas NGC | Constant surface speed off |
| Mazak (EIA) | Constant RPM |
| Okuma OSP | Constant surface speed off |
| Mitsubishi M70 M80 | Constant surface speed off |
| Siemens 840D 828D | Cancel constant cutting speed |
| Fagor 8055 8065 | Constant tool center feed (mill) |
| LinuxCNC Tormach | Spindle RPM mode |
| Mach3 Mach4 | Constant RPM, Mach4 |
| Hurco WinMax (NC) | Direct spindle RPM |
| Swiss (Citizen Star) | Constant RPM |
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