Rigid Tapping Feeds/Speeds in AL6061 - Page 2
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  1. #21
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    Quote Originally Posted by G00 Proto View Post
    just before that evil little tap starts his first hole, I push pause, I look at the code and look for a G84, and check my feed rate and rpms... then I close my eyes, and hit the green button. While it is tapping that first hole in an expensive complicated part, I stomp my right foot repeatedly so I can neither hear, nor see that little MOFO break off in the hole.
    I used to hide behind the control until the first hole was successfully tapped. Still get stressed when I hit the start button when tapping.

    (And I only use floating holders)

  2. #22
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    ProjectZero,

    If you're using Fusion360, this should be absolute cake. I tap all the time and have never had a single issue, and have *never* had to manually edit code (on Haas SMM).

    The thread pitch is set in your tool definition. (see image below). I don't like to be in a big hurry tapping, so on something like a 1/4-20 in aluminum, which is my example here, I'll have the RPM set at 1000 in the tool definition.

    Select "Drilling" from the toolbar at the top, select your tool/tap in the first tab, and make sure you select "Right Tapping" from the drop-down in the 4th tab. -- (note: you may be selecting "Tapping" instead or "Right Tapping"? If so, that's the setting used for a tapping head, not for rigid tapping).

    That's pretty much it.

    PM

    1.jpg

    2.jpg

  3. #23
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    It is my understanding that Fadal likes to tap in high gear. So if your rpm is under 2500, make sure you enter it like SXXX.2

  4. #24
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    What Format are you using on your Fadal?
    Format 1 uses a "Q" value. Format 2 doesn't. It uses "S" and "F"(F = RPM/TPI). 5000 rpm seems pretty fast for a Fadal.

  5. #25
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    CALLING ALL Jalapeño eaters!!! Or growers or whatever you do down there Bob.

  6. #26
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    Quote Originally Posted by ProjectZero View Post
    Damn. I just broke my tap.

    First my mill was throwing an error "Thread Lead Not Specified". I go into my fadal user manual and look up the line is question. Sure enough I find G84, and it turns out the "Q" is missing. I trusted you, Fusion 360 CAM module! So first I manually add in Q.03125. Now my line of CAM looks like this:

    N815 G98 G84.1 X2.125 Y1.5625 Z-0.535 R0+0.15 S5000.2 F156.25 Q.03125

    But my tool still broke! It seemed go down fine, then to break upon reverse. What did I do wrong? I pre-drilled using a brand new .1065 drill bit. I can try G00 Proto's advice and knock the RPM down to 500 (from 5000!). Thoughts?
    G99 G84 X-2.4958 Y-2.5082 Z-0.5 R0.25 F15.63 The Q should make the cycle peck, I'd leave that out


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