does this help...https://www.cnczone.com/forums/g-cod...ing-lathe.html
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
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does this help...https://www.cnczone.com/forums/g-cod...ing-lathe.html
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.
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.
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.
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
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
Last edited by Heavy_Metal; 01-25-2020 at 04:20 PM.
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)
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.
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
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
%
Last edited by Heavy_Metal; 01-26-2020 at 06:27 AM.
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.
Last edited by Heavy_Metal; 01-26-2020 at 06:18 AM.