These are the materials that I gathered (from the first class). I will be using these materials to create my prototype. My original work plan was to use wood, but I believed that wood would be too heavy and time-consuming to work with, so I substituted cardboard for it instead.
Using the materials that I cut and picked up from the first class, I started to build my prototype car. I met some problems, e.g. the propeller was situated too low to spin without hitting the ground, so I had to come up with creative solutions that changed my plan a little as I was not expecting these problems when I created the plan. Unfortunately, I do not have a test video of my final prototype, but the car worked – except that it was too heavy to be moved by the propeller.
Here is a photo of the finished prototype design. More rubber bands can be hooked onto the paper clip if necessary. I did not pay much attention to aesthetics, as this is a prototype and I had to see if my design worked.
The third and fourth classes were dedicated to building my final project. Because the propeller seemed to be too weak to push such a heavy object forward, I attempted to counter this problem by using a bigger propeller. I also used a smaller and more compact design to reduce weight. Some of the materials from the prototype were recycled for this design, some were given away to other people, and some were scrapped to be used again. I used white cardboard, as it looks brighter and complements the black wheels + propeller better.
This is a downloadable video of the final prototype in action (spoiler alert: it doesn’t work). The final prototype is quite unstable, but at least sometimes it moves a little. The last blog post will cover more of the reflection on this final design.