Glass 3D Printing (G3DP) is an additive manufacturing platform designed to print optically transparent glass, developed by the Mediated Matter Group at the MIT Media Lab in collaboration with the Glass Lab at MIT. The platform is based on a dual heated chamber concept. The upper chamber acts as a Kiln Cartridge while the lower chamber serves to anneal the structures. The Kiln Cartridge operates at approximately 1900°F and can contain sufficient material to build a single architectural component. The molten material gets funneled through an alumina-zircon-silica nozzle. The project synthesizes modern technologies, with age-old established glass tools and technologies producing novel glass structures with numerous potential applications.