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M20 C axis off (Citizen) / One cycle stop (Star)
Swiss (Citizen Star) M-code · Lathe
On lathes: C axis off (Citizen)
Ends C axis control and returns the main spindle to normal turning.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
Addresses
| Address | What it does |
|---|---|
None | No addresses |
How it works
Cancels M18.
Example program
M20 (C AXIS OFF)
G97 S1=4000 M3 (BACK TO TURNING)
Example is in inch. Check offsets and clearances first.
Watch out for
- On Star M20 is a one cycle stop. Builders differ.
On lathes: One cycle stop (Star)
Stops the machine at the end of the current part when the one cycle switch logic calls for it.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
Addresses
| Address | What it does |
|---|---|
None | No addresses |
How it works
One shot.
Example program
M20 (ONE CYCLE STOP)
M99 (LOOP)
Example is in inch. Check offsets and clearances first.
Watch out for
- On Citizen M20 is C axis off. Do not move programs between builders without checking.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M20 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Gantry loader call |
| DMG Mori MAPPS (Fanuc) | Automatic power shut off |
| Mazak (EIA) | Robot service call |
| Okuma OSP | Tailstock Barrier OFF |
| Hurco WinMax (NC) | Pulse indexer one step |
| Fadal | Cycle general purpose indexer |
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