Problem with Fanuc - Illegal command G71-G76


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Thread: Problem with Fanuc - Illegal command G71-G76

  1. #1
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    Default Problem with Fanuc - Illegal command G71-G76

    I have a Hawk lathe with a 21i giving me the above error. I cannot figure out what the problem is.

    The first block is a straight drill cycle, no peck and it errors

    The second is a peck drill cycle (.083) and contains Q parameter, no error
    I tried adding Q0000 but that didn't work either.
    What should I try? Thanks!!

    Code blocks are below

    Error
    N84 G74 R.005
    N85 G74 Z-.025 F.0026
    N86 G80

    No Error
    N98 G74 R.005
    N99 G74 Z-2.1002 Q0835 F.0026
    N100 G80

    Similar Threads:
    Thanks
    Marc


  2. #2
    Community Moderator Jim Dawson's Avatar
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    Default Re: Problem with Fanuc - Illegal command G71-G76

    G74 requires the Q word. Try setting Q = Z Q0025

    or just do a G1 move.

    Jim Dawson
    Sandy, Oregon, USA


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    Default Re: Problem with Fanuc - Illegal command G71-G76

    Quote Originally Posted by Jim Dawson View Post
    G74 requires the Q word. Try setting Q = Z Q0025

    or just do a G1 move.

    Thanks, I'll try that in the AM

    The code comes from my post processor in Bobcad. I'll take a look and see if I can fix that also.

    Thanks
    Marc


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Problem with Fanuc - Illegal command G71-G76

Problem with Fanuc - Illegal command G71-G76