CNC Machinist Calculator UltraG99 Fixed cycle return to R0 plane
Fadal G-code · Mill
After each hole the tool goes back to the R0 plane. Faster when there is nothing in the way.
Format
G99
How it works
Modal, return group.
Example program
N1 G0 G40 G49 G80 G90 G17 (FORMAT 2 SAFE START)
N2 T2 M6 (1-4 DRILL)
N3 G0 G90 G54 X1. Y1. S2500 M3
N4 G43 H2 Z1. M8
…
N2 T2 M6 (1-4 DRILL)
N3 G0 G90 G54 X1. Y1. S2500 M3
N4 G43 H2 Z1. M8
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Only use G99 when the path between holes is clear at the R0 height.
Related codes
G99 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Canned cycle return to R level |
| Haas NGC | Canned cycle R plane return |
| Mazak (EIA) | Canned cycle return to R plane |
| Mitsubishi M70 M80 | Canned cycle return to R plane |
| Brother Speedio | Canned cycle return to R plane |
| Heidenhain TNC (ISO) | Tool definition in the program |
| Fagor 8055 8065 | Return to reference plane |
| LinuxCNC Tormach | Cycle retract to R plane |
| Mach3 Mach4 | Cycle return to R plane |
| Centroid CNC12 Acorn | Canned cycle return to R plane |
| Hurco WinMax (NC) | Cycle return to R plane |
| Swiss (Citizen Star) | Feed per revolution |
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Open G99 in the app All Fadal G-codes