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[Suggestion] Wouldn't be great a spring loaded nut block?

Discussion in 'Share Parts' started by peluzza, Sep 14, 2015.

  1. peluzza

    peluzza Well-Known
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    I'm wondering how to avoid adjusting anti-backslash parts, specially when are mounted in Z axis. I made a fast mockup of a modified 8mm Nut Block, with a Weld Square nut and a spring.

    Do you think it would it work? and would it worth?

    EDIT: although I said ACME screw, I meant threaded rod, usually 1mm pitch.


    [​IMG]
     
    #1 peluzza, Sep 14, 2015
    Last edited: Sep 15, 2015
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  2. Joe Santarsiero

    Joe Santarsiero OB addict
    Staff Member Moderator Builder

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    I never liked the idea of springs for antibacklash mechanisms. Try a design that utilizes a solid means with adjustment for preloading.
    cool design though.
    Joe.
     
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  3. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    You may be able to achieve the same thing just by removing the nut and wedging a stiff spring inside the existing anti-backlash nut block.
     
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  4. peluzza

    peluzza Well-Known
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    Thanks both!

    I agree, but AFAIK there's no 1mm pitch nut block, just ACME pitch. Also, I think this block is oversized for that pitch. I will mechanize this part for my current project, just for fun. :)

    Why is preferable the split nut method instead? I think is quite aggressive for the screw, springs are more progresive and adaptive to small imperfections of the rod.
     

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