I draw rough drawing that includes only basic information and annotations, but through feedback from classmates, I revised the drawing to the isometric drawing. Then, I built an RC car which is not really the same as my thinking. There was not plenty of time, so I just built it as seemed like the minibike. I just observed my model that what I need to revise and how to make it easily in a short time. There are some specific feedbacks from others, especially classmates told I need to change the directions of the product because it should avoid the obstacles or obstructions that block them to not go forward. Improvements: I revised the position of the front tires. I drew specific locations of motors, batteries, and CPU. I added some specific measurements. I will make holes in the side of cardboard, and then I will put my screws and connect them together. For success criteria, we finished on time and we built the product as similar as our rough drawing.