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IndustryArena Forum > Mechanical Engineering > Linear and Rotary Motion > Linear Motion F A Q compilation. Please read before posting.
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  1. #1
    Community Moderator svenakela's Avatar
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    Linear Motion F A Q compilation. Please read before posting.

    This is a compilation of answers for most of the frequent and important questions asked at the Linear motion subforum.

    1. Please read this thread before posting your question.
    2. If you would like to contribute, please do so. But remember to keep the thread clean and about linear motion, questions and off topic posts will be removed.
    3. If you're not sure if your question is answered - or if it's not answered at all - don't hesitate to ask it the usual way! New forum questions are always welcome.


    Swede's Ballscrew Basics

    Widgitmaster's Ball screws 101

    arvidb's CNC Mechanics.pdf

    Will Igus rails work on my home made?

    What rail size (or, everything is probably oversize)?

  2. #2
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    Here is a very comprehensive article about STEPPER MOTORS that is both helpful and detailed:

    http://www.cs.uiowa.edu/~jones/step/

    Scott

    (Moderator - please feel free to relocate if this is not the appropriate location!)
    Consistency is a good thing....unless you're consistently an idiot.

  3. #3
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    Here are a couple of articles on eliminating backlash:

    http://www.cnccookbook.com/CCBacklash1.htm (Part I, the Basics)

    http://www.cnccookbook.com/CCBacklash2.htm (Part 2, Refinements)

    also an article on steppers vs servos:

    http://www.cnccookbook.com/MTCNCStep...voBacklash.htm

    Cheers!

    Bob W.

    PS As Scott said, "Moderator - please feel free to relocate if this is not the appropriate location!"

  4. #4
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    Articles not found

    The links to the articles on eliminating backlash and not valid. Are they located elsewhere?

    Thanks,
    Kerry

  5. #5
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    Quote Originally Posted by Kerry Harrison View Post
    The links to the articles on eliminating backlash and not valid. Are they located elsewhere?

    Thanks,
    Kerry
    try tossing a .com at the end..

    http://www.cnccookbook.com/CCBacklash1.htm
    http://www.cnccookbook.com/CCBacklash2.htm
    http://www.cnccookbook.com/MTCNCStep...voBacklash.htm

  6. #6
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    Most of the links here don't work. Posters please update the link if possible? Thanks

  7. #7
    Community Moderator svenakela's Avatar
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    They sure do, a couple missed "com" in the end though. It's corrected.

  8. #8
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    Hi good people.
    I have tried to ask in other threads, but no one responds. May be it's me, asking a wrong questions in the wrong places. It' just the website's configuration bit of confusing to me...
    The question was: How do I make my machine move along x-axis (the longest one)? I figured, that using a lead screw would be little dangerous and speed restricting because it's almost 10 feet long. And besides, the gantry is not a loop shape, so I have to use 2 screws? I was thinking of using a linear gears, but they are so expensive!!! And in my case 2 sets is required!
    Is there any other way to get in moving?
    Please, see pictures of my project in gallery.
    Anyone can help me? Please?
    Thank you in advance!!!
    Attached Thumbnails Attached Thumbnails almost_there.jpg  

  9. #9
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    long axis

    I saw an advertisement here a while ago that claimed they had an accurate rack and pinion setup.

  10. #10
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    Hi guys !

    Any info on ACME screws ?

    I personnaly have some questions:

    1) What to choose between: 24mm dia. x 5mm lead. VS 16mm dia. x4mm lead ???

    2) How does the required motor torque increase with respect of screw diameter ? (is it correct to use "with respect of" in this case ? would it be better to use "relatively to" ?)

    Thanks !
    cnc2.

  11. #11

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    Re: Linear Motion F A Q compilation. Please read before posting.

    Here is a very informative blog about advantages of linear ball guide which is both helpful and informative to choose the right ball guide while looking for ball guide.

    https://dipali1810.livejournal.com/620.html

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