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G03 Circular or helical move counterclockwise
Hurco WinMax (NC) G-code · Mill
Cuts a counterclockwise arc in the active plane. Add the third axis to cut a helix. The center is given by R or by I J K.
Format
G03 X Y [Z] {R or I J} F
Addresses
| Address | What it does |
|---|---|
X Y | Arc end point in G17 |
Z | Helix end height |
R | Radius. Positive for 180 degrees or less, negative for more |
I J K | Arc center |
F | Feed rate |
How it works
Modal, group 01. Replaced by G00, G01, G02 or a canned cycle.
Example program
T2 M06 (.375 END MILL)
G90 G54 G00 X1. Y0. S4000 M03 (START ON CIRCLE)
G43 H02 Z.1 M08 (LENGTH OFFSET)
G01 Z0. F8. (TOP OF BORE)
…
G90 G54 G00 X1. Y0. S4000 M03 (START ON CIRCLE)
G43 H02 Z.1 M08 (LENGTH OFFSET)
G01 Z0. F8. (TOP OF BORE)
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- ISNC: I J K are incremental from the arc start in both G90 and G91. Basic NC: absolute in G90.
- A, B and C words are not allowed in an arc block.
- In ISNC a block with only a Z word after an arc gives a helix around the last center.
Related codes
G03 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Circular interpolation counterclockwise |
| Haas NGC | Circular interpolation counterclockwise |
| Mazak (EIA) | Circular interpolation, counterclockwise |
| Okuma OSP | Circular interpolation counterclockwise |
| Mitsubishi M70 M80 | Circular move counterclockwise |
| Brother Speedio | Circular interpolation counterclockwise |
| Siemens 840D 828D | Circular interpolation counterclockwise |
| Heidenhain TNC (ISO) | Counterclockwise arc, Cartesian |
| Fagor 8055 8065 | Counterclockwise circular interpolation |
| LinuxCNC Tormach | Counterclockwise arc or helix |
| Mach3 Mach4 | Counterclockwise arc |
| Centroid CNC12 Acorn | Counterclockwise arc or helix |
| Fadal | Circular interpolation counterclockwise |
| Swiss (Citizen Star) | Circular move counterclockwise |
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Open G03 in the app All Hurco WinMax G-codes