In 24 Hours and With Work Equivalent to 100 Masons, Robot Prints Complete 200 Sq M House and Could Forever Transform the Construction Industry

Written by Romário Pereira de Carvalho

Published on 06/10/2025 at 10:17

Updated on 06/10/2025 at 10:30

Tecnologia de impressão 3D promete reduzir custos, acelerar obras e até erguer bases na Lua – Imagem: Crest Robotics

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Australian Startup Launches the Charlotte Robot, Capable of Printing a 200 m² House in Just One Day. The Technology Uses Sustainable Material of Sand, Recycled Glass, and Crushed Bricks, Promising to Reduce Costs and Environmental Impact in Construction

The Australian startup Crest Robotics, in partnership with Earthbuilt Technology, unveiled the Charlotte robot, capable of printing a 200 m² house in just 24 hours. The equipment achieves productivity equivalent to the work of about 100 masons, representing a significant leap in automated construction.

The system uses a sustainable material created by Earthbuilt, composed of sand, recycled glass, and crushed bricks.

This composite is applied layer by layer through extrusion, allowing the entire structure to be erected in a continuous flow, without the need for forms or manual frameworks.

ARTICLE CONTINUES BELOW

Sustainability and Application

Charlotte is still in the experimental phase but has already had a reduced model presented to the public.

The companies believe that the technology could, in a few years, help reduce the housing shortage in various countries and even be used in constructions outside of Earth, such as in future lunar bases.

The robot has a compact shape and a design inspired by biological structures, making it suitable for operating in challenging terrains or environments.

Advantages and Limitations

Printed houses have important benefits because they are erected quickly, cost less, and have superior resistance to floods and fires.

Additionally, if the material is produced locally, the process reduces the carbon footprint.

On the other hand, the system still faces technical and climatic challenges, being suitable only for simple projects.

Nevertheless, Charlotte emerges as a promising alternative in light of the labor shortage and frequent delays in global construction.

With information from Olhar Digital.

In 24 Hours and With Work Equivalent to 100 Masons, Robot Prints Complete 200 Sq M House and Could Forever Transform the Construction Industry

Australian Startup Launches the Charlotte Robot, Capable of Printing a 200 m² House in Just One Day. The Technology Uses Sustainable Material of Sand, Recycled Glass, and Crushed Bricks, Promising to Reduce Costs and Environmental Impact in Construction

Sustainability and Application

Advantages and Limitations

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In 24 Hours and With Work Equivalent to 100 Masons, Robot Prints Complete 200 Sq M House and Could Forever Transform the Construction Industry

Australian Startup Launches the Charlotte Robot, Capable of Printing a 200 m² House in Just One Day. The Technology Uses Sustainable Material of Sand, Recycled Glass, and Crushed Bricks, Promising to Reduce Costs and Environmental Impact in Construction

Sustainability and Application

Advantages and Limitations

While a traditional school may take several days just to raise walls, in Malawi a 3D-printed school had its structure ready in 18 hours, welcomed children in June, and showed a new solution to the lack of classrooms.

With a diameter of 15.08 meters, a length of 182 meters, and weighing 3900 tons, the world’s largest tunnel boring machine for drilling super hard rock made a 9 km tunnel in Georgia and impresses with its excavation power.

Material once seen as a poor man’s choice returns as a climate bet, with red clay replacing part of the gray concrete in modern buildings, hospitals, houses, and a cultural center that transforms tradition into a solution against urban heat.

Study solves great ancient mystery: remains of Philip II, father of Alexander the Great, are identified in Vergina and resolves the enigma of the Macedonian royal tombs that had lasted half a century.

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