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  1. kungfumel

    Double torsion spring vs. two torsion springs (left and right hand)

    I am designing a mechanism with a torsion spring on each side of a base that work together to hold an arm down. Each spring is warped around a 0.7" boss. The arm is 17" long. I am trying to get 10-lbs of force at the tip of the arm when it is opened out 135 degrees. I have attached a sketch of...

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