3D-LINE, a V-Concept brand founded 2017, produces 3D-printed concrete garden furniture using a self-built printer and custom cement formulations

3D-LINE, the design-focused brand of French company V-Concept, produces 3D-printed concrete furniture, including garden planters, pots, benches, decorative pieces, and garden lamps, for architects, designers, and private clients seeking original small-series work. V-Concept was founded in 2017 by Frederic Vigier, who brought more than 20 years of plastic injection-molding experience before building the company's 3D printer in-house, covering its mechanical design, control software, and algorithms. Vigier switched from plastic-resin-and-mineral-filler blends to cement in 2016, developing proprietary concrete formulations tailored to furniture production rather than structural building work.

The shift from polymer to concrete extrusion places 3D-LINE in the garden-furniture and decorative segment of construction-oriented 3D printing, a category with far lighter regulatory and tolerance requirements than load-bearing architectural components. That lighter governance burden gives the company more design freedom to pursue complex, sculptural geometries as its custom printer's capability expands, distinct from the qualification grind facing structural concrete printers targeting walls and facades. Each commission follows a defined workflow: client brief, hand sketches, 3D modeling, a 1/10-scale validation model, then full-scale concrete printing.