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. The commercial construction project, developed by an AMTG customer, used the three synchronized G2 construction 3D printers in a coordinated workflow, with long wall sections, openings and architectural transitions formed directly during printing.
According to AMTG, distributing the work across several machines allowed the project team to spread production across the building footprint rather than depending on a single printer. The company describes the G2 as a high-reach gantry construction 3D printer designed for large building projects, with a modular Cartesian structure that can be configured according to building geometry and site requirements.
Coordination approach not disclosed
AMTG has not disclosed how the three printers were synchronized, including whether they operated simultaneously under centralized control or followed coordinated production schedules. The project nonetheless illustrates one way of scaling construction 3D printing: deploying multiple gantry systems instead of relying on one machine.
The manufacturer's 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.
Three construction printer families
Beyond the G2, AMTG offers three construction 3D printer families. Its R-Series includes road-mobile and tracked robotic systems intended 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.
3D printing enters 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, reflecting a model in which contractors fold 3D printing into existing construction operations.
A comparable approach has emerged in Germany, where construction group Matthäi established a dedicated 3D printing division after completing 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 with conventional methods.
Expanding printer reach and capacity
Other projects are exploring ways to raise production capacity and broaden the area covered by automated equipment. In France, the ViliaSprint² development used a COBOD BOD2 printer to build a three-storey, 12-apartment residential building, printing its walls and load-bearing structure in 34 days against an initial estimate of 50 days. The project partners are planning a larger development involving two printers operating simultaneously.
Meanwhile, Australian construction technology company Luyten 3D 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.