ROBOT ATE ME

To produce a mechanism that is triggered by A
(the person before )’s mechanism,and that subsequently triggers B(the person after)’s mechanism.

When the ball from (A) rolling down into the hole on the robot ‘s head and hit thetrigger(we tried different sizes and materials of balls in order to make the ball rolling slowly and softly and we tried different positions of putting our mechanisms to find the correct angle of the drop of the ball) the happy expression of the robot changed into an angry face then the mouth open and a cola can rolling out hit the trigger of (B)