Fadal tapping format 2
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  1. #1
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    Default Fadal tapping format 2

    Typically I just threadmill holes because most orders are small quantitites, but this time I cant swing it due to high quantity. I will be using a floating tap holder in a VMC 15 in format 2 without rigid tapping. Tap is 1/4-28. Does this code look alright?

    N60 G00 Z0.5
    N65 M29 S500
    N70 G98 G84 X-0.5205 Y-3.8605 Z-0.1 R0.5 P0 F17.9

    This is my first time trying to tap on a fadal. I only have 1 floating holder, and no extra parts, and I am terrified to run this. IF anyone can tell me It will be alright, or if someone can tell me if the codes wrong, it would really bring me some peace of mind.

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    Default

    It looks mostly right to me. Two comments though: First, I don't know what M29 does. When I tap, I just put the spindle speed on its oWn line ex: N65 S500.2 ( I was taught to use high speed when tapping, hence the .2). Second, you don't need the P0 on line N70.

    Here is an example of some tapping code I just used in Fadal format 2:
    N101 S640.2
    N102 E1 H5 Y-.188 X.188 Z.5 M8
    N103 G84 R0.5 Z.05 F20.
    N104 G80 G0 M9

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  4. #3
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    G84 in format 2 should retract 5% faster than it feeds in, that's were the
    P word comes in. P1 will retract 1% faster than it feeds in, and strangely,
    at least on my machines, p0 doesn't do anything and it still retracts 5% faster.

    You really only need this if you are tapping deep, and the change in feed can
    mess with your T or C, and can screw up some of your upper threads.

    I also don't know what M29 does.

    And last comment. I'm a fan of simplifying things, so I like to do my
    feeds so that it only takes a quick peek and I/you know its right.

    1/4-28. 280rpms, 10ipm. or 560rpms and 20ipm.. or 420rpms and 15ipm.

    Other that it looks right. Practice on some scrap first.

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  6. #4
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    M29 is Fanuc synchronized tapping mode. AKA Rigid tapping. We use often with solid or micro-float holders.

  7. #5
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    Got it Figured out, your help saved my ass again. Thanks guys


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