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IndustryArena Forum > WoodWorking Machines > DIY CNC Router Table Machines > Getting ready, need help calculation TCNC

Thread: Getting ready, need help calculation TCNC

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  1. 07-22-2006, 10:48 PM #1
    slp_prlzys
    slp_prlzys is offline Registered
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    Getting ready, need help calculation TCNC

    I finally finished my frankenstein machine,
    I want to try turbocnc with it, but I'm
    having trouble with configuration
    (maybe I should be in TCNC forum)
    I tried tcnc before when it was v3,
    and I only have single start screws.
    Now using v4 but with multistart screws.
    These are the screws I have for use with (a very appreciated gift) g201's
    X= 4 start 8TPI
    Y= 4 start 8TPI
    z= 2 start 4TPI


    my pitches for X & Y would be .125 right?
    does the number of start affect the calculation?

    with 10 µStep is .00003125 correct?

    thanks.
    mhel
    "This is intentionally left blank."
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  2. 07-22-2006, 10:52 PM #2
    ger21
    ger21 is offline Community Moderator
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    by TPI you mean threads per inch, not turns per inch, right?
    If threads per inch, the pitch is .5 for all the screws.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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  3. 07-22-2006, 10:57 PM #3
    slp_prlzys
    slp_prlzys is offline Registered
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    TPI thread per inch yes.

    in TCNC I should put .5 on the space for TPI?

    Can you elaborate on how you get the pitch.

    thanks.
    mhel
    "This is intentionally left blank."
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  4. 07-22-2006, 11:03 PM #4
    slp_prlzys
    slp_prlzys is offline Registered
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    darn it, you divide the number of start by the #TPI .Duh!
    mhel
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  5. 07-22-2006, 11:23 PM #5
    ger21
    ger21 is offline Community Moderator
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    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
    Reply With Quote Reply With Quote
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