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IndustryArena Forum > Mechanical Engineering > Linear and Rotary Motion > Selection of Lead Screw (Dimensions)

Thread: Selection of Lead Screw (Dimensions)

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  1. 03-14-2017, 09:15 AM #1
    Sahl
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    Selection of Lead Screw (Dimensions)

    I am designing a CNC wood cutting router for Final Year Project of university. I wish to design it from scratch but I am stuck at the dimension selection for lead screw (since as far as I know, I should start from lead screw). The question is that what ACME lead screw should I choose? What should be the TPI, Pitch, Length, Lead, and Diameter? And on what basis should I select them?

    The internet says I should consider linear velocity, or feed rates, and some say weight of the assembly, and some go for torque? But I don't know any of these. I think I will start from the lead screw and then go to these specifications. HELP. Correct me if I am wrong.
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  2. 03-14-2017, 11:46 AM #2
    ger21
    ger21 is offline Community Moderator
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    Re: Selection of Lead Screw (Dimensions)

    How big is the machine?
    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. 03-15-2017, 04:42 PM #3
    Sahl
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    Quote Originally Posted by ger21 View Post
    How big is the machine?
    Its work envelope is supposed to be 1.5*1*0.5 ft^3 and I have decided to keep the machine size as 3*1.5*1 ft^3.
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