CodeXplain on Instagram: "What started as a cool idea quickly turned into a brutal engineering marathon. A maker set out to build a fully functional marble clock, only to discover that every tiny mistake broke the entire system. Tracks jammed, prints failed, and massive parts had to be reprinted again and again. Hours were spent hand sanding components just to make gravity behave the way physics demanded. At one point, he openly called the project a “huge mistake.” But after countless setbacks,