Florida-based construction 3D printer manufacturer AMTG has reported that three of its G2 gantry systems were used together to produce the printed wall system for the Mella shopping center. The commercial project was developed by an AMTG customer and relied on a coordinated workflow in which multiple machines shared the printing work.
Coordinated printing across one building footprint
According to AMTG, the three G2 systems operated in a synchronized workflow. Long wall sections, openings and architectural transitions were formed directly during printing, an approach that allowed the project team to distribute work across the building footprint rather than depending on a single machine.
AMTG describes the G2 as a high-reach gantry construction 3D printer intended for large building projects. Its modular Cartesian structure can be configured to suit building geometry and site requirements.
The company has not disclosed how the three printers were synchronized — for example, whether they ran simultaneously under centralized control or followed coordinated production schedules. Even so, the project illustrates one route to scaling construction 3D printing: deploying several gantry systems instead of one.
A limited supplier role
AMTG says 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.
Three printer families
Beyond the G2, AMTG offers three construction 3D printer families:
- R-Series: road-mobile and tracked robotic systems for rapid deployment.
- G-Series: gantry printers for on-site construction.
- F-Series: factory-controlled production of prefabricated components.
3D printing entering conventional construction
The Mella project sits within a broader move by construction companies to integrate 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. The initiative covers more than a dozen commercial projects and includes equipment deployment, operator training and technical support — a model in which contractors fold 3D printing into their existing operations.
A comparable approach has emerged in Germany, where construction group Matthäi set up 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.
Expanding capacity and reach
Other projects are testing ways to raise production capacity and extend 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. Its walls and load-bearing structure were printed in 34 days, against an initial estimate of 50 days. The project partners are planning a larger development that would involve 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, it is designed to cover larger construction footprints from a single installation point.