G09 Exact stop, one block
Fanuc G-code · Mill and lathe
Makes the tool slow down and fully stop at the end of this one block before the next move starts. Gives a sharp corner instead of a rounded one.
Format
G09 G01 X Y Z F
Addresses
| Address | What it does |
|---|---|
X Y Z | Move that must end with an exact stop |
How it works
One shot, group 00. Only works on the block it is in.
Example program
G01 X2. F30. (MOVE TOWARD CORNER)
G09 Y1. (STOP EXACTLY AT THIS CORNER)
X0. (NEXT SIDE)
G09 Y1. (STOP EXACTLY AT THIS CORNER)
X0. (NEXT SIDE)
Example is in inch. Check offsets and clearances first.
Watch out for
- Use G61 when you want exact stop on every block instead of adding G09 to each one.
- Adds cycle time. Use it only on corners that must be sharp.
Related codes
G09 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Haas NGC | Exact stop, one block |
| Okuma OSP | Exact stop, one block |
| Mitsubishi M70 M80 | Exact stop check, one block |
| Brother Speedio | Exact stop check |
| Siemens 840D 828D | Exact stop, one block |
| Fagor 8055 8065 | Arc defined by three points |
| Mach3 Mach4 | Exact stop, one block |
| Centroid CNC12 Acorn | Decelerate and stop, one block |
| Hurco WinMax (NC) | Exact stop, one block |
| Fadal | Decelerate with feed ramps, exact stop |
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