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  1. #16
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,542

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    Most people refer to it as plunge cutting the thread. It does work well if you have the rigidity. Strange thing is, to cut an internal thread, it is usually a variation on that method. Now if it is good enough to use for an internal thread, why would you change methods just because it is external?

    Michael

  2. #17
    Join Date
    Dec 2013
    Age
    56
    Posts
    1,416

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    Quote Originally Posted by jack620 View Post
    I had to cut two 10x1.5mm male threads yesterday. I had my solid toolpost on the lathe and was too lazy to swap it for the compound. So I just used the crossfeed dial and added on 0.1mm with each cut. Used the half nuts and wound the carriage back to the start with the wheel (no reversing the lathe). First time I've cut a thread without using the 30 degree compound offset method. It worked a treat. I sometimes wonder if we overcomplicate things.
    I just plunge cut at 90 degrees, always have even Acme thread form

    Sent from my 5007U using Tapatalk
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  3. #18
    Join Date
    Dec 2013
    Age
    56
    Posts
    1,416

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    I just wrote a post on plunge cutting without actually reading your post, lol

    Sent from my 5007U using Tapatalk
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