On this final 1/2 scale product which came out from the applying of the inverted chain model that was done previously, by modeling the result coming out of the physical chain model into rhino to be able to digitally fabricate it by laser cutting the strips and screwing them together to obtain the same stability formation that came out of the chain model but behaving in a different manner according to the material used and the amount of weight applied over it.
The pictures shows how the book shelf is functioning, by placing some objects in to it, to test its stability and behavior accordingly
With a view to develop our project, we have extended idea of chain model. Through adding another layer of strings and connecting them in various distances, we achieved 3D representation of previously applied principle.
My initial idea was to create multi-functional decoration element, which is fully customized by its user.
Object is combined from diamond shape modules, which can easily be joined together. This enables customer to adjust product to his needs, change its size and shape through adding or removing particular modules. Depending on material selection and location this decoration element could serve as a screen, curtain or carpet.
In order to solve the problem which occurred in a previous model (lack of stability) we were searching for methods to balance it. Taking into consideration existing forces and their impact on the model, we came across Gaudi’s “hanging chain” model. The hanging model is based on the theory of the reversion of the catenary. A chain suspended from two points will hang spontaneously in the shape of the so called catenary. Only tension forces can exist in a chain. The form of the catenary upside down gives a perfect shape of an arch in which only reversed forces of tension, being compression, will occur.
In our model we wanted to apply this principle in order to find a solution to make it more stable. We build our “chain” model from fishing lines, connecting them which were previously drawn points by paperclips. In connections we applied different weights. The direction and amount of forces determined the shape of the spacing and length of the strings. Results were various but in each example forces were balanced. What is more we noticed that the strings between points created straight lines, so while making physical model we have taken this rule into consideration.
From the upside down picture of our chain model we created 3D representation of this logic – stable prototype from paper.
This was the first attempt to start doing physical model for our specific book shelf design. We started with a small scale card board model just to explore and test the behavior of the material and how its responds to our design.
We continue to look at the surface pattern and start to look into connection of the individual elements.
After some preliminary hand sketches, we brought our design into grasshopper and began playing around with the shape, the arch of the curves as well as the surface pattern.
The progression of the bench analysed side by side in our physical models.
In the photo-set you will see the gradual changes of the bench, as well as an alternate solution that was abandoned; as it was cut in layers and did not allow us to be as parametric. However, once the issues were resolved the waffle bench design allowed it to become more parametric and usable.
The grid in the design now changes it’s density in certain locations to deal with the structural aspects of the bench. The waffle production was chosen as it allowed us to play with different shapes while keeping it’s structural integrity.
In the end the group is happy with the out come of the design progression.
Preliminary hand sketches helped us to establish our double-looped curved design.