[PAR_WIG1350]

Not that it won't work, but controlling a button with a servo seems like it's adding additional potential points of failure unnecessarily.Servo controlled features do have their place, but i'm not sure this is it.

If the servo and button are on 2 separate systems, then I suggest a relay instead of a button that must be physically connected with the servo and then made to work together.

on the other hand, if the system controlling the servo also receives the input from the button, the issue could probably be fixed in programming.

However, if you still feel these solutions won't work and you need some sort of electromechanical actuator, a solenoid might be better (assuming this isn't ON the robot, if it is, the input from the button and servo output are both handled by one system so you should fix it in the code)

of course, since this is a black project there could be some major detail I don't know about that makes this your only option, in which case, disregard this.