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  1. shanec2

    Need spring to raise 225 pds 18" within 30" tube

    I've got two hollow pipes of 30" length each, one fits within the other, inner pipe ID is 2.9". I need, via spring internal and/or external springs, to raise inner pipe an additional 18" with a 225 pound load atop it. It does not have to actually raise it, just counter that 225 pound weight...

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