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Thread: Using Mastercam X4- Fanuc 3t post.. G50 twice? Wrong threading cycle? How to fix?

  1. #1
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    Red face Using Mastercam X4- Fanuc 3t post.. G50 twice? Wrong threading cycle? How to fix?

    Here is what is getting spit out on my cimco edit software from mastercam X4

    %
    (PROGRAM NUMBER O0000 )
    (PROGRAM NAME - TEST1 )
    (PART NAME - TEST1)
    (TEST1)
    ( MPL LATHE )
    (DATE=DD-MM-YY - 25-01-10 TIME=HH:MM - 11:27 )
    /G0 G28 U0
    /G28 W0
    /G0 W-20.
    /M30

    N1
    M9
    ( LDRILL SPOT TOOL .25 DIA. )
    ( TOOL - 1 OFFSET - 1 INSERT - NONE )
    M38
    G28 U0. W0.
    G50 X10. Z10.
    G50 X-0 Z0 T0100 S5000
    G0 X0. Z.25 T0101
    Z.1
    G1 Z-.05 F.01
    G0 Z.25
    M9
    X-0 Z0 T0100 M5
    M01

    N3
    M9
    ( LDRILL DRILL .49 DIA. )
    ( TOOL - 3 OFFSET - 3 INSERT - NONE )
    M38
    G28 U0. W0.
    G50 X10. Z10.
    G50 X-0 Z0 T0300 S5000
    G0 X0. Z.25 T0303
    ( MPL NK4 LATHE )
    Z.1
    G1 Z-1.1502 F.01
    G0 Z.25
    M9
    X-0 Z0 T0300 M5
    M01

    N5
    M9
    ( LFINISH ID ROUGH MIN. .25 DIA. - 75 DEG. )
    ( TOOL - 5 OFFSET - 5 INSERT - NONE )
    M39
    G28 U0. W0.
    G50 X10. Z10.
    G50 X-0 Z0 T0500 S10000
    G96 S200 M03
    G0 X.5 Z.1 T0505
    ( MPL NK4 LATHE )
    G1 Z0. F.01
    Z-1.
    X.4579
    X.3164 Z-.9293
    G0 Z.03
    M9
    X-0 Z0 T0500 M5
    M01

    N7
    M9
    ( LTHREAD ID THREAD - MIN. .25 DIA. )
    ( TOOL - 7 OFFSET - 7 INSERT - NONE )
    M38
    G28 U0. W0.
    G50 X10. Z10.
    G50 X-0 Z0 T0700 S5000
    G0 X.2459 Z.212 T0707
    ( MPL NK4 LATHE )
    G76 P010029 Q0. R0.
    G76 X.5 Z-.9731 P270 Q54 R0. E.05
    M9
    X-0 Z0 T0700 M5
    M30
    %



    Why am I getting (2) G50 lines with every tool? How do i change this. I know C++ and can edit posts but would need guidance on exactly what to change.

    Also,

    My threading cycle.. How can I change it to put out something exactly like this...

    Line 1= G76 P=(no. of passes), then camfer, then insert angle
    Line 2= G76 X(minor dia.) Z=(thread length) P(thread depth from major to minor, No decimal) Q (depth of 1st cut, No decimal) F (FEED= 1/Pitch)

    Any help would be greatly appreciated..


  2. #2
    Registered KyleH2's Avatar
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    I am not sure, however I would like to edit my post so that it outputs a T0100 at first and then includes the offset on the first move like you have. may I ask how you did that?

    E.G.
    G50 X-0 Z0 T0100 S5000
    G0 X0. Z.25 T0101
    CNC Machinist & Engineering Tech
    B.S.M.E. Student (Graduate 2013 @ UCF)


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