[waghalter]

jesseK is right,

as the student leader of the design team building this, along with our mentor's help, we found that the pivot has some extremely strong forces acting on it. the potential for the pivot axel to get bent or damaged is high if the robot's design does not build in enough support to stiffin the axel.

so please consider this if you are doing a similar design. best wishes team 698. Good luck !