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G02 Clockwise circular interpolation
Fagor 8055 8065 G-code · Mill and lathe
Clockwise arc at feed rate. Define the end point plus the center with I J K, or a radius R. Polar R Q end points can also be used.
Format
G02 X Y I J [F] or G02 X Y R [F]
Addresses
| Address | What it does |
|---|---|
X Y | End point of the arc |
I J K | Arc center, incremental from the start point unless G06 is used |
R | Arc radius, negative for arcs over 180 degrees |
F | Feed rate |
How it works
Modal. Replaced by G00, G01, G03, G33 or G34.
Example program
G00 G90 G17 X0 Y1.0 (START POINT)
G01 Z-0.1 F10.0 (FEED DOWN)
G02 X1.0 Y0 I0 J-1.0 F15.0 (QUARTER ARC CW, CENTER AT X0 Y0)
G02 X0 Y-1.0 R1.0 (NEXT QUARTER WITH RADIUS)
…
G01 Z-0.1 F10.0 (FEED DOWN)
G02 X1.0 Y0 I0 J-1.0 F15.0 (QUARTER ARC CW, CENTER AT X0 Y0)
G02 X0 Y-1.0 R1.0 (NEXT QUARTER WITH RADIUS)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- I J K are incremental from the arc start point. Add G06 in the block to give the center in absolute coordinates.
- A full circle cannot be done with R. Use I J.
Related codes
G02 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Circular interpolation clockwise |
| Haas NGC | Circular interpolation clockwise |
| Mazak (EIA) | Circular interpolation, clockwise |
| Okuma OSP | Circular interpolation clockwise |
| Mitsubishi M70 M80 | Circular move clockwise |
| Brother Speedio | Circular interpolation clockwise |
| Siemens 840D 828D | Circular interpolation clockwise |
| Heidenhain TNC (ISO) | Clockwise arc, Cartesian |
| LinuxCNC Tormach | Clockwise arc or helix |
| Mach3 Mach4 | Clockwise arc |
| Centroid CNC12 Acorn | Clockwise arc or helix |
| Hurco WinMax (NC) | Circular or helical move clockwise |
| Fadal | Circular interpolation clockwise |
| Swiss (Citizen Star) | Circular move clockwise |
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