Building the Future - One 3D Printed Layer at a Time

At KARLOS 3D, we are excited to share the successful completion of a construction project in Remmeltshofen (Bavaria, Germany) where a building was created using our mobile 3D printer, KARLOS. In collaboration with SCHWENK, and the Rupp Group, this project demonstrates the practical application of 3D printing technology in construction, offering efficiency and sustainability without compromising on quality.

A 3D Printed Building: The Process

In just 29 hours of printing time, a 95-square-meter building (10 x 9.5 m) was completed, with KARLOS handling the entire printing process. Designed to function as a local community center, the building’s walls were printed directly on-site, with no need for traditional forms or scaffolding. KARLOS, a fully electric mobile 3D printer, was set up and ready to print in under an hour. Layer by layer, the structure took shape, with precise, consistent results.
KARLOS operates by converting digital building plans into machine-readable instructions. This allows the printer to produce the building’s walls accurately, layer by layer, using standard concrete. The entire process reduces manual labor and ensures a high level of consistency throughout the construction.

Sustainable and Efficient Construction

One key advantage of this project is its efficient use of materials and energy. The concrete mix provided by Schwenk was selected for its lower CO₂ emissions, contributing to a more environmentally friendly construction process. Additionally, KARLOS operates with minimal energy consumption, being fully electric and capable of using standard concrete mixes with an 8 mm grain size.
This approach doesn’t just save time on-site; it also optimizes the use of resources, helping to reduce waste and minimize environmental impact. For the project partners and builders, this combination of precision and sustainability offers clear benefits in terms of cost and environmental responsibility.

Next Steps: Scaling Up

Following the success of this project, we are already planning a larger endeavor—a multi-family residential building that will also be 3D printed using the KARLOS system. This project will further demonstrate the scalability and practicality of 3D printing technology in construction, proving that it can be applied to a range of building sizes and designs.
KARLOS 3D is committed to delivering reliable, efficient, and sustainable construction solutions. Stay tuned for updates on our upcoming projects.

Watch KARLOS in Action

Interested in seeing how KARLOS works?
Watch the video below to see the printing process in detail, from setup to the final product.

About Our Partners

• SCHWENK: A major player in Germany’s cement and concrete industry, Schwenk is committed to sustainable building materials. | Schwenk
   
• Rupp Group: A construction company focused on integrating advanced technologies into building processes. | Rupp Group