Originally Posted by diredesire
Ah, the pains of traditional dropweight stringers
I wish a mechanism like this was easy to design ...
What's so complicated? Seems to me you need a longer arm and a gripper that is always fixed to the radius of the point where the string goes to the racket is say 1/10th the radius of the arm at any angle. If you have a 6 pound weight (weight and bar) then you have 60 lbs. Automatic drop weight pure and simple.
But what you have is a fixed distance on the rotating device at the gripper. The effect length of the weight continuously changing above and below the bar so you leverage changes. I am not an engineer but that's not hard to figure out.
EDIT: BTW the reason for the longer bar is so you have more travel and you don't have to regrip the string.