After brainstorming with my colleagues yesterday, I'm filled with energy and ideas. I finished the first draft of my design and 3D print it right away. By the time we finished lunch, the prototype is ready! But of course it's not perfect, not even close, I tried to assemble it and discovered some problems so I modified the design and improve it. When I left office today, the third design is already on its way from the 3D printer. How exciting it is!