Mechanical Ventilator  ,  WE Recieved ambu bag Mounted Perfectly and The Case from the Client , and all the need was to mount Mechanism to presses the ambu bag then release ,we build simple Mechanism Using Nema 17 ,GT2 Pulley , Belt , 2 M5x10 Screws and 2040 , the real problem was to mount Everything that perfectly and Aluminium Profile had Sharp edge . so i solved it Using 3d printed part to cover the sharp Edge of Aluminium Profile and Mount with 2 spacers from the bottom . in the i achieved the Goal .