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  1. #1
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    100

    Default Nifty thread cutting technique

    I thought it was going to be something complex or complicated - the DOC is pretty impressive by itself
    https://www.youtube.com/watch?v=CCDP6SFB2Io

    Just doing the math on this and for those with more discrete dials, perhaps metric, and smaller machines taking less material per pass setting a ratio of 10:5.6 or 100:56 on infeed versus compound feed yields 29.24 degrees.

    So if I was taking 0.25mm cuts I'd advance the compound 0.14 - it also makes it easier as my compound leadscrew has a lot of free play as it is currently, I'd only need to be advancing it, not in and back out, then back in with the occasional overshoot...then rinse repeat

  2. #2
    Join Date
    Jun 2007
    Location
    sydney ( st marys )
    Age
    64
    Posts
    4,887

    Default

    That type of method is nothing new.

  3. #3
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    100

    Default

    I'm on a learning curve

  4. #4
    Join Date
    Dec 2007
    Location
    Adelaide
    Posts
    574

    Default

    It's not a bad idea, that had never occurred to me - same overall result as setting the topslide over 30deg.

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