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M39 Air drill cycle
Centroid CNC12 Acorn M-code · Mill
Turns on M request 15 to fire an air drill and waits up to 2 seconds for input 15 to open. Used with G81 when parameter 81 is set to 39.
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 words |
How it works
One shot.
Example program
G81 X5. ; MOVE AND FIRE THE AIR DRILL
Y3. ; NEXT HOLE
G80 ; CANCEL
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- The PLC must take the drill output off when the program stops. Check the wiring with the builder.
- If input 15 does not open within 2 seconds the job is canceled.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M39 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Haas NGC | Rotate tool turret |
Every M-code for Centroid CNC12 Acorn 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 M39 in the app All Centroid CNC12 Acorn M-codes