This audience requires smooth movement of the camera, various speeds of camera movement, and different angles of the model being filmed. These factors were the motivation behind the choice of our engineering specifications, number of arms, degrees of freedom, and motors of our designs. Below are three of the candidate designs our team iterated, which I sketched. Further below is the sketch I created of our final design, which was created by combining the most optimal features of our candidate designs. The premilinary CAD of our final design, seen above, was created by another team member, but along with the rest of my teammates we aided its creation. 

This final design combines the best features from our previous candidate designs. This includes the rack and pinion system (3&4) which rotates the first arm on its own axis, a revolute joint connecting the first and second arms (11) to allow rotation in a plane and  a kill switch (9). The rest of the features are new, and were decided upon by analyzing gaps and issues in our candidate designs. Once the gaps were determined, we brainstormed as to how we can solve them, and those features were added into the final design seen above. Some of these features include the adition of a third arm (15), another revolute joint in between the base and first arm (7) and a helical joint (17). Another added feature is the pulley system inside each arm, which translates the motion produced by the motors, now included inside and at the base of each arm, to each joint at the other end of each arm.