This piece was a very fun challenge to complete, the brief was to design an item to be made of only one sheet of material. Focussing on furniture I had already set myself up to require a large amount of material.
I furthered my own challenge by endeavouring to use no fixings or glues to make the product at the end, so an item that can be put together by hand in as short a time as possible.
By targeting sheet materials I noticed that cheap sheet material is very commonly discarded and replaced with the only option for removal is destruction by the local council, Using these materials not only reduced house waste during renovation or moving but also gave a free and accessible source of flat sheet material.
Realising that the thicknesses of countertops and panelling among other sheet materials can vary to an extreme degree I needed a design that was parametric as well as consistent, playing with bound dimensions in CAD allowed me the ability to generate accurate technical drawings and dimensions for any thickness of material (within reason). The dimensions change because of the slotting aspect of the design.
These instructions show how simple it is to put the chair together, no glues, screws or tools are required to fit this piece together which takes less than a minute to do. By having the intersection of the legs and the seat the tension is more evenly distributed and the angling of the legs allows the centre of gravity to be safe.
While the chair may look slightly flimsy or weak, I have personally tested each chair to hold well over 100kg for a multitude of thicknesses and materials, with OSB in 40mm thickness being able to hold well over 250kg without a creak.