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Australian Startups Debut ‘Charlotte,’ a Spider-Like 3D-Printing Builder at IAC Sydney

Presented as a path to rapid, local‑material building on Earth with long‑term lunar use, the system remains a small prototype pending tests and financing.

Overview

  • Crest Robotics and Earthbuilt Technology showcased the Charlotte prototype at the 76th International Astronautical Congress in Sydney.
  • Developers claim the mobile robot could 3D‑print a 200‑square‑meter home in under 24 hours using on‑site materials such as sand, earth, or rubble.
  • The machine uses a proprietary extrusion and binder process, features a lightweight foldable design, and is pitched as transportable for remote or lunar sites.
  • The project has backing from New South Wales’ Space+ program implemented by the SmartSat consortium, with teams seeking additional partners and funding.
  • Charlotte remains an early demonstrator with unvalidated performance, and developers cite outstanding hurdles including materials testing, autonomy, energy supply, building codes, and lunar environment challenges.