[64dodge]

Machine has fanuc oi-tf control with c axis and live tooling.
I can get it to tap with horz & vert live tooling but not with main spindle.
Tried every thing I can think of. This works for horz on center & off.

T?
M15(LIVE TOOLING OFF TO SET SPINDLE)
GOX?Z?
M29S?
G84Z-?F?
G80

I should be able to replace M15 with M5 to set main spindle.
This has worked for other lathes with live.

Lathe is a Smart Machine NL3000BLM

Thanks
Tim

[machinehop5]

does this help...https://www.cnczone.com/forums/g-cod...ing-lathe.html

[64dodge]

Thanks for the link, got some ideas for polar coord milling.

What I forgot to say was when it gets to the M29 line trying to tap
with main spindle it just stops and sits there with no error.

[machinehop5]

Thanks for the link, got some ideas for polar coord milling.

metoo ..when searching your problem....

DJ

[the_gentlegiant]

Machine has fanuc oi-tf control with c axis and live tooling.
I can get it to tap with horz & vert live tooling but not with main spindle.
Tried every thing I can think of. Tim

You tried everything accept excepting the fact that it can't tap on the main spindle. Live only. (Rigid tapping.)

I have an Oi-ta control with c axis and live tooling, (99-2000) Not exact, but close.

That's the rules as far as I know them. Says so in my book. (Mori SL-200SMC) What is nice is you can retract at a different speed then tapping. I think it's a call in the tapping code line. (Can't say what it is off the top of my head.)

Although it seems like with a floating holder and some careful manual programming, a person should be able to pull something like that off with the C axis.

[64dodge]

You tried everything accept excepting the fact that it can't tap on the main spindle. Live only. (Rigid tapping.)

That would suck if thats the way it is.
I went thru the programing manual and it has examples for main spindle tapping
and it didnt work either.

[64dodge]

This lathe was bought new last summer.
I started there in Oct. Have been asking boss
to call who they bought and get some answers
because it has other problems also.

[64dodge]

It also has this in the M CODE list.
But doesnt work either.

M27 RIGID TAPPING FOR.(CW)
M28 RIGID TAPPING REV.(CCW)
M29 RIGID TAPPING MODE ON

[Heavy_Metal]

Hi,

I assume you want to tap on X0 - centerline.
You should be able to tap but not rigid tapping.
Your program manual may differ from the Fanuc 0i-TD manual, maybe you need extra M-codes.
We do this centerline / main spindle tapping with a floating ER-collet.
We use a Fahrion CET-GB - ER collet, prices between $90,- and $ 120,- see attachments, depend on size.
Available in sizes from ER11 to ER40.

Try something like this ( Metric ) example program.
( TAP - M10 x 1.5 )
G99 ( MM/REV )
G97 S250 ( NO M03 )
M8
G00 Z20.
X0.
G84 Z-15. R5. F1.5
G80
G00 Z20.
M05

[the_gentlegiant]

Hmm... too weird. You sure you included all the arguments in the tapping call?

Wonder if a parameter needs flipped or something.

I double checked my books and nothing about main spindle tapping. (Fanuc Oi-TA Mori MSC-501)

[64dodge]

Yes I want to tap on X0 center line to free up
the only 1 horz live tool for polar coordinate milling

I tried it with and with out m29s?.

Straight g84 as you suggested Heavy-Metal.

Either way spindle doesnt turn or even try to sync.
It just sits there with no errors.

If I start spindle (G97S?M3) before G84 it moves in
as if tapping but when it gets to the Z-? spindle stops,
but doesnt reverse, carraige feeds out and finishs to end.

If you put s? on sepperate line between m29
and g84 it errors.

M27/M28 before or after M29 doesnt work.

[64dodge]

Lathe od/id threads with g76 just fine also orients m19.
I have face drilled/tapped with c axis on and off X centerline g83 g84.
I have od drilled/tapped/milled with c axis on Z centerline (no Y axis) g87 g88.

Sorry Im just adding every thing I can think of

[Heavy_Metal]

HI,

Years ago I did tapping ( X0 ) on an old Takisawa - FANUC 6T without G84 and used a floating collet.
Programmed it something like program below and it worked fine without problems, not to high revs.

%
O1000( TAP M8 X 1.25MM )
G50 X250. Z150. M42
G00 T0101
G97 S250 M03( SPINDLE - CW )
G00 Z5. ( SAVE Z-DISTANCE )
/M08
X0
G01 Z-15. F1.225 ( INFEED - 98%)
M05 ( SPINDLE STOP )
G04 X0.5
G01 Z5. F1.25 M04( OUT FEED 100% - SPINDLE - CCW )
G00 Z30. M09
X250. Z150. T0900 M05
M30
%

[Heavy_Metal]

We have also lathes ( Fanuc - Haas NextGen ) with C and Y-axis and rigid tapping, but not on main spindle.
When tapping in centerline (X0) we can use a program like post #9.
To avoid problems we use the Fahrion CET-GB-ER collets because we don't know that synchronization of revs and pitch is correct.
This type of tapping works great .
Call your salesman, you have one year free support.

Regards.