Florida-based construction 3D printer manufacturer AMTG has said that three of its G2 gantry systems were used together to produce the printed wall system for the Mella shopping center, in a commercial construction project developed by one of its customers.
The customer combined three synchronized G2 construction 3D printers in a coordinated workflow. Long wall sections, openings and architectural transitions were formed directly during printing. Using several machines allowed the project team to distribute work across the building footprint rather than depending on a single printer.
Coordinating multiple gantry systems
AMTG describes the G2 as a high-reach gantry construction 3D printer designed for large building projects. Its modular Cartesian structure can be configured to suit building geometry and site requirements. For Mella, the three systems produced long wall sections, openings and architectural transitions as part of the print itself.
The company has not disclosed how the three printers were synchronized, including whether they ran simultaneously under centralized control or followed coordinated production schedules. The project nonetheless illustrates one approach to scaling construction 3D printing: adding gantry systems rather than relying on a single machine.
AMTG'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.
Printer families and adjacent projects
Beyond the G2, AMTG offers three construction 3D printer families:
- R-Series: road-mobile and tracked robotic systems intended for rapid deployment.
- G-Series: gantry printers for on-site construction.
- F-Series: systems focused on factory-controlled production of prefabricated components.
The Mella project sits within a broader move by construction companies to fold 3D printing into commercial building work. 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. That initiative covers more than a dozen commercial projects and includes equipment deployment, operator training and technical support, a model in which contractors incorporate 3D printing into their existing construction operations.
Germany shows a similar pattern. 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 roughly 105 hours, while foundations, floors and roofing were completed with conventional methods.
Efforts to expand reach
Other construction 3D printing projects are exploring how to increase production capacity and extend the area 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, against an initial estimate of 50 days, and the project partners are planning a larger development involving two printers operating simultaneously.
In Australia, construction technology company Luyten 3D introduced the 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.
The reported projects differ in scale and in how the equipment is used, and in AMTG's case the disclosed contribution covers the printing systems, training and certification rather than the structural design or materials of the Mella build.