a light stool in layers

The basis of this design is a matrix of bioplastics, consisting of 2.4 l water, 32 teaspoons agar, 16 teaspoons vinegar, 48 ml glycerine and 32 tablespoons starch, which is massaged into three pre-sewn layers of cotton. The matrix is used to harden the natural cotton fabric to a biocomposite, which in turn takes on its shape as a seat through selected patterns and topstitching seams.
The seat is created and reinforced by braiding a 4 mm thick jute thread into a circle with a diameter of 30 cm. The round surface is held by 15 jute warp threads, also 4 mm thick, three of which always run into a stool foot and provide stability. The idea here was to create additional instances which hold the feet together and can be removed again when not in use.
The base of the seat is based on a pentagon with a circle as seat. The overall shape of the design finds its signpost in initial experiments with paper and the use of certain geometric shapes that provide particular stability. These experiments resulted in the triangular shape for the five legs.
For the transition between the legs we were inspired by arches, which are used in church construction, for example.
Particularly noteworthy are both the folding of the fabric, which provides special stability by folding it into an arch shape between the legs, and the definition of lines by topstitching certain edges.
In order to obtain the final shape in 3D and to enable the drying process, a wooden support is used. It consists of a base, a plinth and a circular head divided into a central part and six outer parts that can be folded away to allow the dried stool to be easily carried down.
The result of this manufacturing process is a light stool made exclusively from natural, biodegradable materials.


Eva Katharina Nickl
& Julia Trautmann