CNC Machinist Calculator UltraG98 Fixed cycle return to start plane
Fadal G-code · Mill
After each hole the tool goes back to the start plane, the last Z before the cycle line.
Format
G98
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 (START PLANE ABOVE CLAMPS)
…
N2 T2 M6 (1-4 DRILL)
N3 G0 G90 G54 X1. Y1. S2500 M3
N4 G43 H2 Z1. M8 (START PLANE ABOVE CLAMPS)
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Fadal calls the start plane the I plane. Use G98 to jump clamps between holes.
Related codes
G98 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Canned cycle return to initial level |
| Haas NGC | Canned cycle initial point return |
| Mazak (EIA) | Canned cycle return to initial point |
| Mitsubishi M70 M80 | Canned cycle return to start level |
| Brother Speedio | Canned cycle return to initial point |
| Heidenhain TNC (ISO) | Set label |
| Fagor 8055 8065 | Return to initial plane |
| LinuxCNC Tormach | Cycle retract to start height |
| Mach3 Mach4 | Cycle return to initial point |
| Centroid CNC12 Acorn | Canned cycle return to start height |
| Hurco WinMax (NC) | Cycle return to initial point |
| Swiss (Citizen Star) | Feed per minute |
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Open G98 in the app All Fadal G-codes