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  1. #1
    Join Date
    Mar 2007
    Posts
    215

    Question M Code for Tailstock?

    Does anybody know if there is an M-Code that can extend/retract my tailstock. I have a Fanuc 10 control. I know that M-Codes are usually different from machine to machine, but if anyone knows a generic M-code or one they use or the parameter to change to set an M-Code for this, that would be great. Thanks.

  2. #2
    Join Date
    May 2006
    Posts
    265
    We got some moris with 10, and the uses m24 and m25.... On our other fanuc controls the same m code starts the chipconveyor... Try them..

  3. #3
    Join Date
    Aug 2007
    Posts
    339
    on our Lathe we just have a switch to toggle for extend and retract but in the program it's automatic and it's binary code. Our Mills just have a hand crank to feed out and in but we could have ordered and air operated tailstock (with foot switch) but it was too much more money. You didn't state if it was lathe or mill with a 4th axis rotory indexer with a tailstock.

  4. #4
    Join Date
    Mar 2007
    Posts
    215
    I will try the m24/25

  5. #5
    Join Date
    Mar 2007
    Posts
    215
    .

  6. #6
    Join Date
    Mar 2007
    Posts
    215
    Oh, sorry. I have a lathe with a hydraulic powered tail stock. It is extended and retracted using a toggle switch. The problem is that the program I am running requires the tail stock be extended during certain operations and retracted during others. As of now, I am using an M0 and manually hitting the switch when needed. I have heard that there is the possibility of an M-Code that could achieve this same effect. I tried the m24/25 with no luck.

  7. #7
    Join Date
    Aug 2007
    Posts
    339
    I'm not that familar With the Fanuc lathes but it would seem to me there should be a code for that to be introduced while writing the program. Is your control conversational?

  8. #8
    Join Date
    May 2006
    Posts
    265
    I uses tailstock for the same operation, hydralic tailstocks can be operated both with footswitch and with program.. I uses m78/79 on the 18IT, but that is machine spec and will prob not work for you. WHo is the machine builder?

  9. #9
    Join Date
    Jul 2007
    Posts
    60
    what make make is your m/c - it does vary make to make.

    you could try M12, M13, M14, M15 each in turn in MDI - this set moves the tailstock forward/back and activates quill out/in

    M78/M79 is also a good bet


    ST

  10. #10
    Join Date
    Mar 2007
    Posts
    215
    Alright guys, M12-15 no go, n78-79 no go. Its a Wasino lj-103m (older model, going the way of the dinosaurs) with a Fanuc 10T control. And it is not conversational.

  11. #11
    Join Date
    Jul 2007
    Posts
    60
    whey hey, lets go through the complete list!!! try M50/M51 or failing that have you an operators manual with the m code list ( not the yellow fanuc book )

    ST

  12. #12
    Join Date
    Mar 2007
    Posts
    215
    Unfortunately, all I have is the yellow fanuc book, both the Operators manual and maintenance manual and m50-51 has no effect.

  13. #13
    Join Date
    Jun 2006
    Posts
    44
    Hi, on my Mazak T32 control it's :
    M31 - Tailstock up and M32 - Tailstock back.
    i know it's probably no use but might be worth a try just in case !

  14. #14
    Join Date
    Jun 2006
    Posts
    44
    Hi, on my Mazak T32 control it's :
    M31 - Tailstock up and M32 - Tailstock back.
    i know it's probably no use but might be worth a try just in case !

  15. #15
    Join Date
    Jul 2007
    Posts
    60
    ahhhhhhhhhhhh...... here we go then... my Okuma uses M55/M56 and if i remember correctly the HAASle used to use M21/M22.

    hopefully you are not activating other things!!! also how do yoou position the T/s body ? ( by hand and bolt in place or does the m/c pick up and place or is it independant??)

    ST

  16. #16
    Join Date
    Mar 2007
    Posts
    215
    DING DING DING!!! We have a winner! The winner is... M31-32. Thanks for everybodys help in resolving this mystery. You just made my job running these so much better. I love this website. Oh, by the way ST, I bolt in place, why do you ask?

  17. #17
    Join Date
    Aug 2007
    Posts
    339
    Glad to hear mistery solved......yeah the web site here is A OK.... tons of help.....

  18. #18
    Join Date
    Jul 2007
    Posts
    60
    well if your m/c picks up and places the T/s that would need M code, and usually these codes are close to the ones that activate the quill.
    excellent news on the M31 working!!

    ST

  19. #19
    Join Date
    Jul 2005
    Posts
    10
    mori's use m25 m26, miano uses 21 22

  20. #20
    Join Date
    Sep 2007
    Posts
    26
    try m6 for advance and m7 for retract this is how my hwacheon works

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