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    FANUC 21i-T Drip feed: RS232, PCMCIA

    Some information here ... https://www.practicalmachinist.com/forum/threads/dnc-from-pcmcia-card-on-fanuc-21i.206671/
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    Fanuc 0T lathe - G76 threading troubleshooting

    That is correct. The person has to know that all dimensions are pitch-related. Some calculation would still be needed.
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    Free CNC resources

    The next free offer starts on Monday, January 30, 2023, 12:00 AM PST, and will continue for five days. Download link: https://www.amazon.com/dp/B00TGP74Z4 (Live tool drilling cycles on lathe) Also available on all amazon sites.
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    Fanuc 0T lathe - G76 threading troubleshooting

    Yes. That will give two roughing passes. Equal to thread height will give one roughing pass.
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    Fanuc 0T lathe - G76 threading troubleshooting

    An issue with shifting Z is that machining time would double, unless the programmer is smart enough to cut down on roughing passes.
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    Fanuc 0T lathe - G76 threading troubleshooting

    This chart in only for standard coarse pitches. For M16x1.5, formula needs to be used.
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    Okuma Common Variable decimal error

    The difference is indeed small but it may occasionally cause trouble in equality statements. In such cases, the difference in two variables may be compared against a small quantity, instead of testing equality.
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    Determine clamping force

    As the chart indicates, the gripping force reduces at higher RPMs. I have not seen but heard about chucks which compensate for centrifugal effects.
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    Topper lathe fanuc 0-T control geometry issues

    Check the tool setter program. May have a clue.
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    Fanuc 0T lathe - G76 threading troubleshooting

    The terms major and minor diameters are used with reference of basic profile. In design profile, the fillet depth is subtracted from minor diameter and called core diameter (in external thread). Minor diameter is same as bore diameter in the design profile of internal thread. On the other...
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    Fanuc 0T lathe - G76 threading troubleshooting

    I am copying some useful information posted by some other member (I do not remember) in a previous thread. This figure explains why depth of thread needs to be increased ... Modified depth of thread for external threads (to include the additional in-feed) = 1.4 x original depth The 1.4 figure...
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    Renishaw probing in Productivity+ macro on Mazak e1850 overrides feed and rapid button

    6200#7 may work on Fanuc (I am not sure) Also check system variable #3004 in the probing macro.
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    Fanuc 0T lathe - G76 threading troubleshooting

    At the same time, if the finishing allowance is also increased by 0.25, it will keep the roughing depth unchanged, and the thread would be tracked correctly.
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    Free CNC resources

    The next free offer starts on Tuesday, January 24, 2023, 12:00 AM PST, and will continue for five days. Download link: https://www.amazon.com/dp/B09Y2NKCQ9 (CNC Programming: Fanuc Control) Also available on all amazon sites.
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    Automatic Tool Touch

    Refer to the manual
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    Automatic Tool Touch

    Check if #60000 series is defined on your control
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    Fanuc 0T lathe - G76 threading troubleshooting

    You possibly changed the finishing allowance. There are other possibilities also.
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    Trying to understand Fanuc G36/G37

    Yes, offset is needed for editing it 😀
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    Trying to understand Fanuc G36/G37

    I am assuming that when the NC/CNC machines were first made commercially available, macro capability was either not available or had very limited functionality or was an expensive option.
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    Trying to understand Fanuc G36/G37

    I searched parameter manual of both model C and model D (i-series) There is no reference to whether geometry offset or wear offset is modified by G36/G37. Maybe, earlier controls have a parameter to select between the two. A parameter 3405#3, related to G36/G37, has been discontinued in model...
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