Fanuc Lathe system T codes

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Thread: Fanuc Lathe system T codes

  1. #1

    Question Fanuc Lathe system T codes

    Hello all,

    New to Fanuc lathe systems for lathes, more used to milling. anyhow I have discovered that by simply calling up a tool change IE: M06 T2; flags an error. read further in the manual and it would appear the T Code needs to appear as T0101, T0202; and so on.

    Does anyone know why this is the case for lathes?

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  2. #2
    Join Date
    May 2016
    United States

    Default Re: Fanuc Lathe system T codes

    Like you I come from a mill background recently to lathes. There is no such thing as M6 on a lathe. In fact there are so many things different about Fanuc lathes compared to mills that I strongly suggest you get some operation manuals, especially from your machine tool manufacturer and read them front to back.

    Why you ask are are tools called like T0101 or T0202? Because that's how they are called. Get used to it. T0100 calls turret position one but does not call an offset with it. T0101 calls tool 1 and includes offset 1, but understand it doesn't physically move anything until you add a move command of some sort. You will see the offset reflected on the absolute position screen. That being said you might call T0100 to bring the tool into position in a safe area, and call T0101 as you move towards the workpiece. If you want to assign more then one offset to the same tool for whatever reason, it's generally accepted practice to use offset 17 for T01, offset 18 for T2 and so on. In short, add 16 to the tool number.That is if your machine has the basic 32 offsets available. So calling something like T0117 is totally acceptable, if dual offsets for the same tool is what your program needs are for the job at hand.

    Get some books. Read tons, or you're going to mess that lathe up sooner then later. Fanuc Programming and Operation Manuals for your particular control are good and readily available. Programming and Operations Manuals from your machine tool manufacturer are better. Each of those books are a separate item.

    Last edited by the_gentlegiant; 11-14-2019 at 05:15 PM.

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Fanuc Lathe system T codes

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