In the early days of 3D printing, Jouin was the first to successfully adapt the technology to furniture design. To make this stool, he used selective laser sintering (SLS), a type of 3D printing that uses a high-powered laser to fuse small particles of powder material into a solid structure. He produced the entire structure—seating surface, legs, and hinges—in one shot. The stool emerges from the printer in its final form, which contains both its folded and unfolded state. An integrated handle in the seat allows the stool to be expanded with a simple, elegant twisting motion.

Gallery label from

Pirouette: Turning Points in Design, January 26, 2025–November 15, 2025

Gallery label from Design and the Elastic Mind , February 24–May 12, 2008

Jouin utilizes selective laser sintering (SLS), a particular type of 3-D printing, to produce the entire seating surface, legs, and hidden integral articulations of this stool in just one shot (hence the object’s name). With this stool’s array of rods and its simple, elegant twist—fabricated in one manufacturing step—Jouin has created an innovative seating typology.

Manufacturer Materialise NV
Medium Laser-sintered nylon
Dimensions 25 13/16 x 3 15/16" (65.6 x 10 cm)
Credit Gift of the A+D Circle
Object number 450.2006
Department Architecture & Design

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