AMTG, a Florida-based construction 3D printer manufacturer, has disclosed that three of its G2 gantry systems were used together to produce the printed wall system for the Mella shopping center. The company said the commercial project was developed by an AMTG customer and ran the three synchronized printers in a coordinated workflow.
The long wall sections, openings and architectural transitions were formed directly during printing, according to AMTG. Running several machines at once allowed the project team to distribute work across the building footprint instead of relying on a single printer.
Coordinating three gantry printers
AMTG describes the G2 as a high-reach gantry construction 3D printer intended for large building projects. Its modular Cartesian structure can be configured around the geometry of a building and the requirements of a site. In the Mella project, the three systems were used to produce long wall sections, openings and architectural transitions during the printing process itself.
The manufacturer has not disclosed how the three printers were synchronized, including 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 multiple gantry systems rather than a single machine.
AMTG said its role was limited to supplying the printing systems, training operators and certifying equipment operation. Structural design, materials and construction remained the responsibility of the customer's qualified professionals.
Product families and scope
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.
Construction 3D printing moves into commercial projects
Construction companies are increasingly folding 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 add 3D printing to their existing construction operations.
A comparable approach has taken shape 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.
Scaling output and reach
Other projects are exploring ways to lift production capacity and widen the areas 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 now planning a larger development that would run two printers 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.