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G93 Inverse time feed
Centroid CNC12 Acorn G-code · Mill
F becomes 1 divided by the time in minutes for each move. F1 means the move takes one minute. Used for rotary and 5-axis paths from CAM.
Format
G93 G1 X Y Z A B F
Addresses
| Address | What it does |
|---|---|
F | Inverse of the move time in minutes |
How it works
Modal. Cancel with G94.
Example program
G0 G54 G90 X2.2126 Y-1.1995 A94.75 S3000 M3 ; START
G43 H26 Z3.1 M8
G1 G93 X2.2048 Y-1.2593 Z3.0204 F100. ; INVERSE TIME
X2.2052 Y-1.2586 A94.756 F30000.
…
G43 H26 Z3.1 M8
G1 G93 X2.2048 Y-1.2593 Z3.0204 F100. ; INVERSE TIME
X2.2052 Y-1.2586 A94.756 F30000.
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Every G93 move needs its own F.
- Cancel with G94 before normal milling or the feed will be wrong.
Related codes
G93 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Inverse time feed |
| Haas NGC | Inverse time feed mode |
| Fagor 8055 8065 | Polar origin preset |
| LinuxCNC Tormach | Inverse time feed |
| Mach3 Mach4 | Inverse time feed |
| Hurco WinMax (NC) | Inverse time feed |
| Fadal | Inverse time feed |
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Open G93 in the app All Centroid CNC12 Acorn G-codes