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Thread: G32 thread problem

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  1. 03-03-2021, 09:46 PM #1
    Westpalmtom
    Westpalmtom is offline Member
    Join Date
    Mar 2021
    Posts
    1

    G32 thread problem

    Fanuc 6T controller. Ancient Citizen E Swiss. Using G32 for taper screw thread cutting. Modifying F character has no affect on thread lead.
    T1100
    G97S1000M3
    GOX.6Z-.200T1111
    X.1
    G32 X.425Z.6 F.125
    G0X.6
    Doubling Feedrate to F.250 produces the same thread as .125!
    Encoder?
    Parameter?
    Any ideas?
    Tom
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  2. 03-04-2021, 02:55 AM #2
    rcs60
    rcs60 is offline Registered
    Join Date
    Feb 2011
    Posts
    353

    Re: G32 thread problem

    If you have a Ancient Citizen E Swiss i would start by checking just how fast the threading cycle can go
    you don't mention what the pitch is that you are producing was it an 8tpi at the .125ipr ? or does it have a higher tpi thread?
    you are trying to put on an 8 tpi thread at 1000 rpm = 125ipm can your machine actually do this ? 1000rpm x .250ipr =250ipm
    rapids and feed rate are 2 different things to a machine
    try a slower rpm to see if the pitch changes (400 rpm x .125ipr = 50 ipm feed)
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