Florida-based construction 3D printer manufacturer AMTG has revealed that three of its G2 gantry systems were used together to produce the printed wall system for the Mella shopping center, a commercial project developed by one of its customers.
The project used three synchronized G2 construction 3D printers in a coordinated workflow. According to AMTG, long wall sections, openings and architectural transitions were formed directly during printing. Deploying several printers allowed the project team to distribute work across the building footprint rather than relying on a single machine.
Coordinating three construction 3D printers
AMTG describes the G2 as a high-reach gantry construction 3D printer designed for large building projects. Its modular Cartesian structure can be configured according to building geometry and site requirements. For Mella, the three systems produced long wall sections, openings and architectural transitions directly during printing.
The company has not disclosed how the three printers were synchronized, including whether they operated simultaneously under centralized control or followed coordinated production schedules. The project nevertheless illustrates one approach to scaling construction 3D printing by deploying multiple gantry systems rather than relying on a single machine.
AMTG said its involvement was limited to supplying the printing systems, operator training and equipment-operation certification. Structural design, materials and construction remained the responsibility of the customer's qualified professionals.
Beyond the G2, AMTG offers three construction 3D printer families. Its R-Series includes road-mobile and tracked robotic systems for rapid deployment, while the G-Series covers gantry printers for on-site construction. The F-Series focuses on factory-controlled production of prefabricated components.
Bringing 3D printing into conventional construction
Construction companies are increasingly integrating 3D printing into commercial building projects. In the United States, Alquist announced an expansion of its construction 3D printing operations through a partnership involving Walmart, construction firm FMGI and equipment supplier Hugg & Hall. The initiative covers more than a dozen commercial projects and includes equipment deployment, operator training and technical support.
A similar approach has emerged in Germany, where construction group Matthäi established a dedicated 3D printing division following the completion of a two-storey office building. Using a COBOD BOD2 printer, the company produced the building's walls in approximately 105 hours, while foundations, floors and roofing were completed using conventional methods.
Expanding the reach of construction 3D printers
Other projects are exploring ways to increase production capacity and expand the areas covered by automated equipment. In France, the ViliaSprint² development used a COBOD BOD2 printer to construct a three-storey, 12-apartment residential building. Its walls and load-bearing structure were printed in 34 days, compared with an initial estimate of 50 days, and the project partners are planning a larger development involving two printers operating simultaneously.
Australian construction technology company Luyten 3D has introduced its ASCEND A27, a tower crane-mounted concrete 3D printer with a working radius of up to 45 meters. Unlike conventional gantry systems, the ASCEND is designed to cover larger construction footprints from a single installation point.