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M15 Main spindle brake off

Haas NGC M-code · Lathe

Releases the main spindle brake.

Format

M15

How it works

Modal.

Example program

M14 (SPINDLE BRAKE ON)
G01 Z-.25 F5. (LIVE TOOL CUT)
M15 (SPINDLE BRAKE OFF)
G00 C180. (INDEX C AXIS)

Example is in inch. Check offsets and clearances first.

Watch out for

Release the brake before any C move or spindle start.

Related codes

M14

M15 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Live tool stop
Doosan (Fanuc)	Left spindle air blow off
Mazak (EIA)	Milling tool stop
Okuma OSP	C-axis positioning in positive direction
Swiss (Citizen Star)	Back spindle chuck close (Citizen)

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