[Jelle_b_k]

Hi all.

I have a minor programming problem using live tooling in my Churchill Omega 65 with Fanuc 18t.

As I am going to mill a surface, using the Y-axis, I want to lock the spindle (M50) But if I insert the M50 in my program the machine stop moving as soon as it meets a G1 block. There is no alarm showing. The machine just have a green light in the cycle start button, as when it is machining.
If I run the same program, but without the M50, it will work fine.

Program example:
T1111
G98 M92
M14 S1000
G0 C0
M50 (spindle lock)
G0 Z0 X60 Y60
G0 X55
G1 Y-60 F160
G0 X200 Z200 Y0
M51
M30

Hope someone can give a suggestion, that can solve my small issue.

Thanks a lot!

[houstonsamuel]

Take a look on your positions screen and see if your Y axis is moving. I may be moving real slow. Your feed is at 160. You may know this already. It may be reading the F160 as F.0160 because there is no decimal.

[Jelle_b_k]

The Y-axis is not moving at all.
The machine is acting like, if you in f/rev mode, is programming a G1 without any spindle rotation.
And if I delete the M50, the program works fine.

[christinandavid]

Why bother locking the spindle? Doesn't it use the spindle as a C-axis for milling also?

DP

[Jelle_b_k]

Not in this case.
I'm machining in stainless steel, and have a fine surface roughness requirement. I experience a little shaking, if I don't lock the spindle.

[sinha_nsit]

What is M92 for?
Are you sure M50 is for spindle lock on your machine?
Is M31 also available?
What value you have in parameter 5110?

[Jelle_b_k]

M92 is to enter live tooling

Yes, M50 will lock the spindle on my machine.

M31 is not available.

The value in parameter 5110 is 0

[hitachibos]

are you in inch per revolution feed or inch per minute G94/ G95 or G99/G98
depending on your control set up.

[Jelle_b_k]

G98 mm per minute.