M24 Thread chamfer off

Fanuc M-code · Lathe

Turns off the pull out chamfer so the thread runs straight to the end point, for example into a groove.

Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.

Format

M24

How it works

Modal until M23.

Example program

G97 S900 M03 (CONSTANT RPM)
M24 (THREAD CHAMFER OFF, BUILDER CODE)
G92 X.47 Z-.8 F.0769 (THREAD INTO GROOVE)

Example is in inch. Check offsets and clearances first.

Watch out for

With the chamfer off, leave a relief groove so the tool does not crash into a shoulder.
Numbers vary by builder.

Related codes

M23

M24 on other controls

The same number can mean something different on another control.

Control	Meaning
Haas NGC	Chamfer out of thread off
Doosan (Fanuc)	Chip conveyor run
DMG Mori MAPPS (Fanuc)	External output
Mazak (EIA)	Robot service call
Okuma OSP	Chuck Barrier off
Swiss (Citizen Star)	Back spindle reverse (Citizen)

Every M-code for Fanuc 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 M24 in the app All Fanuc M-codes

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