Gigacasting is manufacturing by subtraction. When Tesla brought its first Idra Giga Press online at Fremont in 2020, the machine closed its die with roughly 5,600 to 6,200 tonnes of force and turned Model Y underbody assemblies of up to 70 stamped and welded parts into two or three castings. Every part that disappeared took its welds, its robots and its share of floor space with it.
