CNC Machinist Calculator UltraHome › M-codes › Mach3 Mach4 › M30
M30 Program end and rewind
Mach3 Mach4 M-code · Mill
Ends the program and rewinds to the top. Cycle Start runs it again from the first line. Defaults reset depending on setup.
Format
M30
Addresses
| Address | What it does |
|---|---|
M30 | No address words |
How it works
Non modal.
Example program
G0 G20 G90 G54 G17 G40 G49 G80 (SAFE START, INCH)
T1 M6 (TOOL CHANGE)
G43 H1 Z1.0 (LENGTH OFFSET)
M5 M9 (SPINDLE AND COOLANT OFF)
…
T1 M6 (TOOL CHANGE)
G43 H1 Z1.0 (LENGTH OFFSET)
M5 M9 (SPINDLE AND COOLANT OFF)
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Mach3 resets G54, G17, G90, G94, M48, G40 and stops spindle and coolant only if those options are on, Config menu, Logic page.
- Do not rely on M30 to turn things off. Program M5 and M9 first.
Related codes
M30 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | End of program and rewind |
| Haas NGC | Program end and reset |
| Doosan (Fanuc) | Program end & rewind |
| DMG Mori MAPPS (Fanuc) | Program end and rewind |
| Mazak (EIA) | Reset & tape rewind |
| Okuma OSP | End Program (Lathes & Mills) |
| Mitsubishi M70 M80 | End of program and rewind |
| Brother Speedio | Program end and rewind |
| Siemens 840D 828D | End of program |
| Heidenhain TNC (ISO) | End of program, same as M2 |
| Fagor 8055 8065 | End of program and return to start |
| LinuxCNC Tormach | Program end and pallet shuttle |
| Centroid CNC12 Acorn | End of program, custom |
| Hurco WinMax (NC) | Program end |
| Fadal | End of all subroutines, or end of program |
| Swiss (Citizen Star) | Program end and reset (Star) |
Every M-code for Mach3 Mach4 in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.
Open M30 in the app All Mach3 Mach4 M-codes