One Line, Multiple Chairs
Collection of 3D-printed chairs
Preject Studio presents a collection of 3D-printed chairs, produced by Wohn, at DDCated during 3DaysofDesign 2025.

This collection imagines a playful future of seating, where multifunctionality and new interactions emerge through 3D printing. Each chair is printed from a single, continuous line using recycled filament. By eliminating screws, glue, and joints, these designs show how 3D-printed furniture can be more accessible and affordable.

Wohn contributes their large-scale 3D-printing expertise and uses upcycled plastics and wood waste to create filament for this project.
Service: Furniture
Material: Recycled nylon & upcycled wood fiber
Status: Realized
Client: Wohn A/S
Droplet
Outdoor Lounge Chair
Droplet is a lounge chair inspired by the elegance of a falling raindrop.
Its fluid silhouette is formed from a single, continuous line. Its curved profile provides space for the legs, a generous backrest, and a soft, inviting seat, all secured by the structural logic of its shape.
With no joints, screws, or additional parts, Droplet demonstrates how form and function can emerge from a single gesture. 
Ova
Lounge Chair
Ova is a lounge chair and ottoman designed as a seamless unit.
3D printed in one continuous loop, Ova's bold and circular silhouette embraces a playful yet minimalistic aesthetic. 
The cylindrical ottoman is designed to roll out or into the chair’s frame, merging into a single form. Both the chair and ottoman can exist independently, offering a playful interaction and flexibility in function. 
Rocka
Rocking Chair
Rocka is a revival of the rocking chair by utilizing the benefits of 3D printing to design a one-piece chair where the rocking movement, comfort, and structure are formed from one continuous loop. Rocka requires no joints, fasteners, or additional assembly, celebrating the purity of 3D printing.
Huggi
Multifunctional Children's Chair
Huggi is a high chair, a low chair, and a slide for children, all in one piece of furniture. These functions come into play via the way you turn the chair. Huggi hopes to spark curiosity and unlock new types of play via this multi-use.

Designed as a continuous loop, Huggi showcases the freedom of 3D printing, enabling organic forms that seamlessly transition between uses.
Tangent
Accent Chair
Tangent explores the intersection where three simple curves meet to form the seat, backrest, and legs.
At each intersection, the chair fuses through the print process itself. The barely overlapping paths of the 3D extrusion lock the curves together, achieving structural integrity purely through precision in geometry.
Using Wohn’s large-scale printers, multiple chairs are printed simultaneously in a continuous loop on the print bed. Tangent acts as the connector between each chair, keeping the machine running non-stop to reduce time and cost.
Contour
Dining chair
Contour is a 3D-printed dining chair with a sculpted form that provides a generous seat and supportive backrest.
Each curve locks into place through the layering process itself - no need for screws, glue, or joints. Using a planar 3D-printing technique, the chair is printed from its side up. Its looping silhouette creates comfortable ergonomics and structural integrity. The result is an architectural, modern chair that is bold in its presence yet minimal in its construction.
Process
Collaboration with Wohn A/S
We teamed up with Wohn A/S, known for 3D-printed homes in Denmark. Using Wohn’s large-scale printers, each design is laid down in recycled nylon filament, which is also recyclable, meaning the chairs can be shredded back into new filament.
The chairs are designed for Wohn’s industrial production, where multiple chairs are printed in a continuous loop, cutting time, cost, and material waste. This collection demonstrates how industrial-scale 3D printing can make designer furniture affordable, customizable, and circular.