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Rebal Jber
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Waste to Fit

Furniture, scrap wood

Rendering of a curved wall made from stacked wooden blocks beside two small scale figures.

Trash became furniture. In real time. With maths.

A university project with Isabella, Max and Tom Esder, on the circular economy. The brief was to reuse waste material, so we started with a pile of scrap wood left from earlier carpentry work.

Fig. 01The result at wall scale, rendered.

From scrap to geometry

01

Scan the scraps

Colleagues brought random pieces in different sizes. We scanned the face of every piece in 2D and fed the scans into Grasshopper.

Fig. 02One block, described by eight points.
02

Build the joint

The algorithm made clean 3D joint geometry from the scan data, and matched pieces that were never meant to fit together.

Fig. 03A block and the planes around it.
03

Pack the volume

Shape-packing along contours then fitted the scraps into volumes: chairs, walls and structures. The algorithm found order in chaos.

Fig. 04Pieces nested along a line.

Built with augmented reality

The moment that made everyone stop was the AR step. With an iPad we built the chair in real time, with Grasshopper on the screen and the wood in the room.

Fig. 05
Fig. 06

The tablet shows the model; the blocks on the floor follow it.

Fig. 07The AR view of the model.

Waste is just material waiting for the right maths.

The chair

Fig. 08Built from the scraps.

The scraps ended up as a stool. Every block is a leftover piece, fitted into the shape by the algorithm.

Fig. 09
Fig. 10

Detail of the wall, and two small prototypes.

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Rendering of a tall curved wall made from stacked wooden blocks, with a small figure for scale.
Diagram of one wooden block with eight black points marking its corners.
Diagram shows a wooden block surrounded by grey planes.
Small ring-shaped parts line up along a diagonal, increasing in size.
Black and white view of a tablet model above a ring of real wooden blocks.
A tablet displays a block arrangement beside the matching pieces on the floor.
A tablet on a stand shows a block model overlaid on a workshop floor.
A twisting stool made from stacked wooden blocks stands on a workshop floor.
Rendering close-up of wooden blocks stacked into a curved wall.
Two small block prototypes, one wooden and one white, sit on a grey carpet.