The final design of the Trashamaran closely resembles the original design that we had hoped to physically create. The final design contains many of the components that we were originally going to build before being sent home including the hull of the ship which was modeled with two 2’ x 4” PVC pipes, 4 z-brackets, a 1’ x 1’ x .5” sheet of plexiglass, 4 end caps, and two screws that were drilled into the same ends of the end caps. This assembly would have been aided by epoxy for the drilled areas and end caps to maintain a waterproof hull. The plexiglass would have been drilled into the z-brackets on each of the four corners and then attached equidistant from both ends of the boat. We were able to build the design up to this point as seen in the ‘Our Design’ tab. Beyond this point we were unable to physically create the components that went into the final build meaning that they had to be modeled using CAD and TinkerCAD. All of the components that went into the final assembly have been shown with their schematics for the OnShape components under the ‘Our Parts’ tab and with their code, assembly, and component list for the TinkerCAD parts under the ‘Our Electronics’ tab. In summary of what the team has created in TinkerCAD, we created a motor holder, a clip, the chassis, the electronics box, and the rudder. First, the motor holder was designed to model two PVC pipe systems of 1” wide x ⅛” thick tube that extends four inches our from the electronic casing and eight inches in the downward direction using an elbow joint. The design also has a ¼ inch hole near the bottom that allows the wiring to extend from the electronics box down to the motors. This system would again be waterproof epoxied to increase durability and protect the wiring that runs through it. The clips that were created by Erika allows the net to be easily attached to the screws at the end of the hull. The clip is ~2 inches in length and would be machined from metal or stand as a model for purchased carabiners. The design of the chassis follows our original idea to almost the exact specification besides the use of 2’ long x 4.5” wide x 0.5” thick PVC pipe and cap rather than the original 4” tubes and caps. In terms of the box, Mac created a 8.5” x 9” x 2” design that would house the electronics. The box uses a latch to open and close and would include a rubber lining around the opening to prevent water from reaching the electronics that are housed within. Lastly, the rudder would be drilled through the bottom of the box and platform to be connected to the servo using a pin. 

    The electronic design of the boat was all created with the use of TinkerCAD in order to simulate the Arduino Uno that would be used on the physical model. The first component is the motors which are controlled with two buttons and powered using a 9V battery. When one of the buttons is pressed this component powers two DC motors to spin at ~16000 rpm, one going counterclockwise and one going clockwise. When the other button is pressed the motors will switch the direction. This allows the user to control the boat in the forward and reverse directions as well as have the system not move when nothing is pressed. To accomplish this, the code takes advantage of the digital write feature of the Arduino as a boolean meaning that the motors are either on or off and going clockwise or counterclockwise based on what button is pressed.Another electronic component includes the temperature sensor in which having two LEDs one red and one blue. At the moment that the temperature sense in Celsius anything higher than 27 degrees it would light the red LED. Along that if the temperature was 10 degrees or lower then the blue LED would light up. The last TinkerCAD component was a rudder. We used a potentiometer to control the servo we used. The Rudder would be hooked to the servo so that when the potentiometer is turned one direction the servo will go that direction and vice versa. 

    Overall our design encapsulates the vision of a catamaran boat that can collect ocean garbage. While we could not physically build or test our design, through iterations on OnShape and TinkerCAD we are confident that our design accomplished our requirements. The Trashamaran brings an innovative and unique design that intuitively allows the user to help the environment through trash collection.