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IndustryArena Forum > MetalWorking Machines > Bridgeport Machines > Bridgeport / Hardinge Mills > Bridgeport Series 2 Knee to Column deflection
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  1. #1
    Join Date
    May 2009
    Posts
    15

    Bridgeport Series 2 Knee to Column deflection

    I measure .002 deflection at the knee when I run the Y axis between its full range. I tightened the gibs to the point where I could barely move the knee up and down the column, and measured the deflection to be the same (I loosened it after). I have also fully locked the column locks and again no difference. Is this deflection typical? Is there a solution? I have searched the forums for this topic and only found a post where someone suggested locking the column locks...

  2. #2
    Join Date
    May 2009
    Posts
    15
    I think I found the problem. I just discovered there is a gib on both sides of the column for the ways that support that motion. I tightened both, and also fully locked the locks and now only measure .001"... Still seems high, but better.

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