Tesla's dedicated Optimus humanoid robot factory at Giga Texas is transitioning from steel skeleton to a defined footprint, with drone footage captured on August 7, 2026, by aerial observer Joe Tegtmeyer revealing two concrete milestones: the fully formed north perimeter grade beam with distinctive rounded corners, and the emerging south beam that establishes the building's final length for the first time. Grade beams, the reinforced concrete perimeter foundations, lock the footprint once poured, and the north beam's rounded corners signal a design departure from the sharp angles of the main vehicle assembly building. Based on prior drone tracking, the factory's total length is expected to exceed 4,000 feet, which would make it one of the largest single manufacturing structures Tesla has ever built. Construction has been rapid: official groundwork at the North Campus site was confirmed in late May 2026, by mid-June the steel superstructure had cleared multiple floors with seven cranes operating, and drone footage from July 20 showed the steel frame stretched to 450 feet wide, expanding at an average of nearly 8 feet per day. The Optimus factory is part of a 5.2 million-plus square foot expansion at Giga Texas, designed to produce up to 10 million Optimus units annually.