Fanuc Robodrill not reading tool lenght offsets when setting G54 Z0
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  1. #1
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    Default Fanuc Robodrill not reading tool lenght offsets when setting G54 Z0

    Hi we just got a new fanuc robodrill with a 31i-B5 controller. I'm trying set a rough Z zero on top of the block so

    -I jog the tool down to when I want my zero postion to be.
    -Go into my offset, select G54 Z, type in z0 and hit measure.
    -It writes a number to the G54 Z column.


    But when I load another tool into the spindle it and jog down to the same point it's like it thinks all my tools are the same lenght as the one I set the Z0 with. I think it's not activating the tool lenght offset when I load a new tool.

    Anyone had this problem?

  2. #2
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    Do you call a G43 before setting your G54 Z zero and after changing tools? My robodrill (31i-A5) doesn't automatically apply the tool length offset, it has to be called explicitly after each tool change.

  3. #3
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    Default

    Why are you measuring tool lengths and entering them in G54? G54 and it's brethren are Work Offsets. Set Tool Offsets on the Tool Offset page(s).

    Added: If you do what you're doing and enter your lengths in the Tool Offset page(s) as suggested, you will run the job with your G54 Z set to Zero.

    More added: Make sure you have Z0 in your SHIFT register (the one right before G54) when making tool length measurements, unless you're purposely compensating for a tool length setting device.


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