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M139 Spindle speed variation off
Haas NGC M-code · Mill, Lathe
On mills: Spindle speed variation off
Turns off spindle speed variation.
Format
M139
How it works
Modal.
Example program
M138 P5 E1. (VARIATION ON)
M98 P1013 (CUT THE WALL)
M139 (SPINDLE SPEED VARIATION OFF)
M98 P1013 (CUT THE WALL)
M139 (SPINDLE SPEED VARIATION OFF)
Example is in inch. Check offsets and clearances first.
Watch out for
- Turn variation off before tapping cycles.
On lathes: Spindle speed variation off
Turns off spindle speed variation started by M138.
Format
M139
How it works
Modal.
Example program
M138 P100 E1. (VARIATION ON)
G01 Z-3. F.008 (TURN)
M139 (VARIATION OFF)
G01 Z-3. F.008 (TURN)
M139 (VARIATION OFF)
Example is in inch. Check offsets and clearances first.
Watch out for
- M30, RESET and E-stop also turn it off.
Related codes
M139 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Roof shower coolant off |
| Okuma OSP | Lead Machining Function - Learning Operation |
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