2015 S1 Pelin Asa by Studio Air

P E L I N

A S A

STUDIO AIR SEMESTER 1, 2015 Tu t o r S o n y a P a r t o n

CONTENTS

Previous work/Introduction

Part A. Conceptualisation

A1. Design Futuring A2. Computation A3. Composition/Generation A4. Conclusion A5. Learning Outcomes A6. Algorithmic Sketchbook References

5 7 9 11 12 13 15

Part B. Conceptualisation

17 19 21 25 29 35 39 41 43 45

B1. Research Field B2. Case Study 1.0 B3. Case Study 2.0 B4. Technique: Development B5. Technique: Prototypes B6. Technique: Proposal B7. Learning Outcomes B8. Algorithmic Sketchbook References

Part C. Detailed Design C1. Design Concept C2. Tectonic Elements and Prototypes C3. Detailed Design C4. Learning Outcomes

47 51 55 61 73

P re v ious Wor k Redesigning the food gallery of Frist Student Centre

One of the good sides of Grasshopper that helped me a lot in my first design subjects was to give me forms that I had not even imagined, thus helping me to refine my design. But, still itâ&#x20AC;&#x2122;s not a free inspiration; even the random components in Grasshopper relies on some parameters the designer chooses. In this project I marked the most walked paths and used the Voronoi component in Grasshopper to generate the shapes of the tables and their arrangement in the rest of the space.

Another benefit of parametric design is being able to see the changes on the design instantly. That was why I tried to use Grasshopper in this project to adjust where the branches split up, and their and the panelsâ&#x20AC;&#x2122; angle to ensure the most shade according to the changing sun during the ceremony, but the script was not working as I envisioned, and I needed to tweak many parts in Rhino.

A canopy for the graduation ceremony

I am a third year study abroad student from Princeton University studying civil engineering and architecture with a certificate in urban studies. As my academic interests would show I’m into everything in urban environment, which is the reason why I wanted to study abroad in Melbourne; to run away from the smallness of Princeton where I had suddenly found myself after living in a humanmess of 15 million that is Istanbul. My first ever computational design course was also my first ever design course. I struggled, quite hard, through it, hated it sometimes, and what helped me the most throughout was some Grasshopper tutorials on vimeo.com that was posted by some people at the University of Melbourne. Somehow I ended up here, one year later, at the very studio these videos were made for— I did not even realize this until after the first lecture. It was not until when I took my first studio the semester after that I saw I actually learned some things in that course, and loved Grasshopper and parametric design. Starting from the first assignment I couldn’t stop using it when I wasn’t even asked to, and started to hate my love of it because sometimes I was forcing myself to use it even if it might have been easier with other methods. I still have a long way to go in computational design though, for instance learning to decide which ideas are made for algorithmic design, and I think Studio Air is going to help me a lot to cover some of that distance.

Figure above is from an exercise of movement we made with our bodies for the third year studio. The project was to design a chair.

2 2

Conceptualisation

PART A.

CONCEPTUALISATION Conceptualisation

A1. DESIGN FUTURING Micro-computed tomography of a potato beetle (Leptinotarsadecemlineata) elytron. 1 The starting point for the 2013 pavilion of the Institute for Computational Design.

Fig 1. Micro-computed tomography of a potato beetle elytron

And this is where it ended:

Fig 2. ICD research pavilion 2013-14

And the image below that shows bands of cellulose in xylem cells of Arabidopsis thaliana was used to help generate designs with better structural performance by David Benjamin and his team at The Living. 2

Fig 3. Bands of cellulose in xylem cells of Arabidopsis thaliana

These two projects do not, yet, represent a full grown movement in architecture, but are surely members of a growing trend.

As with many innovative design projects ICD’s process started with a problem. They had been working on such biomimetic structures for the last two years, yet their weight had

complicated the manufacturing and placement. To be able to find the inspiration for this 50 m2 structure they collaborated with biologists and paleontologists, who looked into much

Conceptualisation

much smaller things; the beetles. By comparing different types of beetles they found the model they needed for a lightweight yet strong structure in the protective shell for their wings and abdomens; the solution was a double layered system with continuous fibers that connect the upper and lower segments of a shell. To be able to apply the results of this biomimetic research and to build a robotic fabrica-

tion method they developed computational design and simulation tools for the project, and the final modules of the pavilions, each different from the others similar to the trabeculae in the beetle shell, were made with glass and fiber reinforced polymers. 4

strength and light weight, material choice for high performance and the ability to create the differentiated and complex forms taken from the nature, robotic fabrication process for less formwork and more geometric freedom. And still, the end product has a great aesthetic and nothing What is remarkable is that each deci- of excess. This project offers many sion seem to be taken after careful important findings in every step of analysis; the beetle shell analogy for its process to be taken as models.

Fig 4. The final iteration of a chair generated with this xylem algorithm that is 70% lighter than a solid chair. Fig 5. Bio-Computation, David Benjamin and Fernan Federici, 2013.1

David Benjamin and his lab, The Living, on the other hand, works with even smaller things in their designs: bacteria. Again collaborating with biologists his team investigated the xylem cells; the cells found in stems of plants that transport the water in the earth to the rest of its system, due to their lattice shapes that strengthen the cells’ structure (Fig. 3) 5, and turned their form into a 3D wireframe model to gather data about the bar thickness, angle and dimension. When fed into a computer program developed for the project they could create an equation for a ‘xylem-like algorithm’

to form shapes, and thus created a new design tool: “biological algorithm” that could be used to design an object as simple as a chair to more complex things like buildings; just by changing the starting conditions of the lattice thousands of designs with different structural performance and weights can be produced(Fig. 4), and in some of their other projects The Living tried to create biological building materials from crop waste from the farms to produce more sustainable and high strength materials. 6

be connected to many other disciplines, but it has never been that involved with natural sciences. These projects display the new, amazing results that can be achieved with collaboration of fields that are thought to be so far from each other, and to take this one step further, imagine the product if the findings from for instance David Benjamin’s material research were brought together with ICD’s architectural and engineering research; an even more environmental and higher performance design made with the most sustainable materials.

Architecture is always considered to

4. Achim Menges and others, ICD/ITKE Research Pavilion 2013-14 (Stuttgart: University of Stuttgart, 2013) <http://icd.uni-stuttgart.de/?p=11187> [accessed 16 March 2015] 5. David Benjamin and others, <http://biocanvas.net/post/77015393190/bands-of-cellulose-in-xylem-cells-of-arabidopsis> [accessed 16 March 2015] 6. David Benjamin, ‘Bio-design’, The New How, Princeton University School of Architecture, 12 November 2014. 7. University of Pennsylvania, David Benjamin < http://www.design.upenn.edu/architecture/graduate/events/david-benjamin-adaptation> [accessed 16 March 2015]

Conceptualisation

A2. DESIGN COMPUTATION Definition based on “Shape Grammars and the Generative Specification of Painting and Sculpture”8 by George Stiny and James Gibbs (1971) 1

Initial shape

1. Find a part in the initial shape that is similar to the left side of one of the rules. 2. Find how you can change the left side of that rule to make them identical.

Rule 1.

3. Apply those transformations to the right side of the rule. 4. Replace the new shape from the rule with that part of the initial shape. 5. Repeat this process until none of the rules can be applied anymore.

Rule 2.

Rule

Shape

Result

I was first introduced to shape grammars at a talk titled Visual+Computation by Terry Knight, and was totally fascinated. It was still computation, but without computers, that basically followed the same process as a Grasshopper script, except with a pen and paper: take a shape, apply a rule to it to form another, and iterate this process. It sounded quite simple, but the forms that could be created with this process were amazing, and even more importantly,

you could easily see the steps and how shape grammars could not have been the shape changed in each of them. overlooked as they reflect one of the most basic grounds of computational design; The idea of shape grammars in design that very complex forms that cannot be was introduced by George Stiny and easily imagined can be created with simJames Gibbs in a paper submitted to In- ple algorithms. Although they started ternational Federation for Information with a much narrower sense; Stiny and Processing conference in 1971. 9 They are Gibbs initially presented it as a method to not known to directly influence compu- develop a different aesthetics in painting tational design methods today, however and sculpture, as Knight states the potenif the topic was the ‘precedents’ to com- tial of shape grammars is much further: putational design I think a discussion on

8. Stiny, G. and James Gibbs. (1971) “Shape Grammars and the Generative Specification of Painting and Sculpture”, in paper submitted to IFIP Congress. 9. Ibid.

Conceptualisation

as Knight states the potential of shape grammars is much further: “Shape grammars can compute almost anything… A number of graduate students and researchers with these abilities and interests continue to push the boundaries of shape grammar theory. However, there is a wider population that can enjoy, learn from, or use shape

grammars very profitably that needs to many things. By simplifying complex be reached.” 10 goals into basic rules they make it easier to convey such intricate ideas. “The approach is simple enough to be Terry Knight further went on to show grasped by nontechnically-oriented in her presentation that shape gramdesigners, yet rich enough to serve mars have been used by her students as the starting point for complex, so- in architectural designs, and to record phisticated designs;” 11 this is the and teach vernacular art techniques. 12 power of shape grammars; they are very easy to define, yet can describe

Fig 6. and 7. Tile 1 and 5, Processing drawings, Subdivided Tiles. Michael Hansmeyer, 2005. 1

An algorithm that is as simple as shape grammars to follow would make it easier to describe a design to ‘non-designers’ as opposed to presenting a complete building. They would have access to the start of the idea, each of its steps and transformations, and the final results; some of the most important things to ‘read’ a design that people mostly do not get, and then are told to ‘experience’ it. “The aim of this project is to use a very simple process to generate heterogeneous, complex output;” 13 Michael Hansmeyer does not reference the shape grammars at any point of Subdivided Pavilions that he describes as such, yet their similarities are clear in that both reflect how results, or solutions, complex

in appearance can be reached by a com- the connection of the simplest compobination of simple steps. (Fig. 5 and 6) nents that creates the desired product. Hansmeyer is known for the complex forms he creates through algorithmic processes, and although most of them are called ‘architectural’ his work would best be described as technological art works with Vermeer-like attention to detail and a Renaissance complexity. He argues that simple processes, as they are more controllable, are thus also predictable, and can be more easily refined in each step of the algorithm. 14 Yet, this does not take anything away from their power to produce substantial results. This idea is probably one of the most important to keep in mind during computational design process as mostly it is

What would be even more interesting is to see all those projects discussed to connect to each other. (For instance fabrication methods developed through the building of the ICD pavilion can help to build the daring Subdivided Pavilions.) As seen from the progression from the shape grammars to Subdivided Pavilions to ICD’s research pavilions and The Living’s projects they advance different aspects of computational design, yet can be used to build on each other for even more remarkable results.

10. T.W. Knight, Shape Grammars in Education and Practice (Cambridge: Massachusetts Institute of Technology, 2000) <http://www.mit.edu/~tknight/IJDC/> [accessed 7 March 2015] 11. Ibid. 12. T.W. Knight, “Visual+Computing’, Craftwork, Princeton University School of Architecture, 10 April 2014. 13. Michael Hansmeyer, 2D Subdivision Processes (2005) < http://www.michael-hansmeyer.com/flash/2D_subdivision_b.html> [accessed 7 Match 2015] 14. Ibid.

Conceptualisation

A3. COMPOSITION/GENERATION The claim that computation in design might lead to ‘fake creativity’ 15 is quite short sighted. When architecture is already abundant with it that has been created without computation, and is being appreciated, to single out a method of designing is impractical. An architect that would create a fake creativity would create it anyhow; one that would not would spot it in computation too— if there is such a thing. In fact, I would argue that computational design would help with the creativity of those so-called fake creativity designers. To start with, there are so many different aspects of generative design (form generation, material and structural performance, fabrica

tion 16 that it cannot be criticized in just one of its aspects (form generation) as being inhibitive to creativity especially when it can be seen that its other areas, such as performance and materials and fabrication, are some of the best tools today for ‘creativity’ that is established on coherent motives, and not only aesthetics. (We can take the two projects discussed in A1 as good examples of that.) Shoei Yoh is considered to be the first architect to incorporate parametrics in his design. 17 Some of the first designs, Odawara Municipal Sports Complex and Galaxy Toyama Gymnasium, in which he used this approach was

made at the beginning of 1990s. 18 In about 25 years one would expect this mode of design to at least become a more widespread knowledge, yet the sheer fact that computation is still a very differentiated design method that is researched and applied by specialized groups of people prove its limited use. Yoh’s primary reason for choosing this method was to optimize the performance of the structures; he would try different lengths of the members of the roofs and find the best iteration for a sculpted roof form that also had a high performance19 and responded to the changing outside forces. 20 (Fig. 8) Yet, still today generative tools are not

Fig 8. Odawara Municipal Sports Complex, Shoei Yoh, 1991. 1

15. Bryan Lawson, “ ‘Fake and Real Creativity Using Computer Aided Design: Some Lessons from Herman Hertzberger” in Proceedings of the 3rd Conference on Creativity & Cognition (New York: ACM Press, 1999), pp. 174-179. 16. Rivka and Robert Oxman, Theories of the Digital in Architecture, (London: Routledge, 2014), pp. 1-8. 17. Tim Abrahams, “Computers in Theory and Practice”, The Architectural Review, 26 April 2013. < http://www.architectural-review.com/essays/computers-in-theory-andpractice/8646960.article> [accessed 18 March 2015] 18. Shoei Yoh+Architects, <http://www.japan-architects.com/en/yohshoei/projects-3> [accessed 17 March 2015] 19. Canadian Center for Architecture, Archaeology of the Digital, <http://www.cca.qc.ca/en/exhibitions/1964-archaeology-of-the-digital> [accessed 17 March 2015] 20. Benoit Palop, Fathers of teh Digital Architecture are Reunited in a New Exhibition, < http://thecreatorsproject.vice.com/blog/the-fathers-of-digital-architecture-arereunited-in-a-new-exhibition> [accessed 17 March 2015]

Conceptualisation

being preferred 21 during the design process, and structural analysis is only carried out after the entire design is already conceived, not leaving out enough room for changes.

tory solution. 22 With the emergence of parametric software in 1990s their job got a bit easier however Burry argues that these software, which were not as functional back then as well, has not improved enough, and did not get One interesting application of com- easier for architects to use 23, which putational design is to connect tradi- is probably one of the reasons why it tions to today with it. In a way it is has not grown enough extensively. ironic that this shiny new technological method also helps to build on the As much as these new tools have their past. When Mark Burry and his team ample advantages they are not free first started working on the comple- from some rational complaints, and tion of Gaudi’s Sagrada Familia they the recent work on Sagrada Familia needed to test surfaces graphically for has been criticized as well. 24 Figure 9 fit with what is left from Gaudi’s origi- shows a recent photograph of the canal documents, make 3D models made thedral, and the incongruity between to check, and then iterate this physical the organic spires of Gaudi’s original process till they arrive at a satisfac- work and the abrupt triangles of the

Fig 9. Parametrically driven digital sculpting through boolean subtraction, Mark Burry, 1994

facade can clearly be seen. David Benjamin, as much as he uses parametric software a lot himself, warns against the “cold-blooded efficiency” 25 that might come from trying to use the computational optimization to its utmost potential and ignoring disregarding other architectural values, which might have been the factor here. There is a great prospective of utilizing today’s modern tools to learn from and develop on traditions, however the context should never be overlooked. Both the parametric design software and architects who use them still have a long way to go before this rather new and exciting design technique can be used to its utmost potential.

Fig 10. Sagrada Familia, Barcelona, Spain, 2010.

21. Kostas Terzidis, Algorithmic Architecture, (Boston: Elsevier, 2006), p. xi. 22. Mark Burry, Computational Design Thinking, ed. by Achim Menges and Sean Ahlquist, (West Sussex: John Wiley&Sons, 2011), p. 112. 23. Ibid. p. 113. 24. David Kohn, “Gaudi’s Sacred Monster: Sagrada Familia, Barcelona, Catalonia”, The Architectural Review, 25 July 2012. < http://www.architectural-review.com/gaudis-sacredmonster-sagrada-familia-barcelona-catalonia/8633438.article> [accessed 17 March 2015] 25. David Benjamin, ‘Bio-design’, The New How, Princeton University School of Architecture, 12 November 2014.

Conceptualisation

A4. C O N C L U S I O N

For the beginners it always feels as if computational design is a very recent development as it is not yet at the forefront, and we mostly get stuck with only one side of it when it has so much more because it is quite hard to get comfortable even with that one little part. Part A strove to present the life of algorithmic design from its early precedents to today, with a lot of gaps in between, as well as to show the many faces of it from using it for better and faster iterations for performance optimization to generating the most complex forms. As I progressed from shape grammars to the example of utilizing parametric design software for a structure as old as Sagrada Familia I was fascinated by how computation helped ‘the old’ to connect to the present by giving it a medium to be carried on more easily and thrive. I think I would like to explore this side of computational design more because I had never even considered it as I was learning about and trying to apply algorithmic design in my projects. Yet, now it feels like a great instrument to bring out the culture that seem to be mostly overlooked in today’s rapidly growing and globalizing architecture world through the very methods that in a way symbolize the modern day’s advances. We tend to forget it on our daily routines, but architecture and design can offer a lot to bring it back and make it relatable to today.

Conceptualisation

A5. L E A R N ING OU TCOMES

Although I had started to learn a bit about different conputational design tools and how to use them before writing this first part of the journal helped me realize that I had not considered the different directions I could take my projects to as I had focused too much on just learning whatever I needed for the assignments from the software. Thinking about all the varied uses of computational design gave me further ideas on some of the previous studio assignments where it had never occurred to me to refer to parametrics to solve the problems I was having with my design. For instance, the project for our studio last semester was to design a chair, yes, that simple, it seemed at first. But as my partner and I were going over how we wanted our chair to behave we realized that we were not sure at all whether it could stand at all once we made the one-to-one scale model. We had focused on just one model too m uch and had not tried different variations to see which one would work at all, as we thought that we would need to make a physical model for all. If we were more comfortable with parametric design tools we might have been able to make it more sound and test the performance of different iterations and also the fabrication methodsinstead of wasting time with the wrong plans during the manufacturing of the final model.

Conceptualisation

A5. ALGORITHMIC SKETCHBOOK Modelling Sea Sponges This is an algorithm for creating syconoid-like sponges with varying profiles. The Grasshopper script for each sponge is clustered for easy repetition, and the parameters were adjusted separately.

Parameters

The location of sponges The length of each sponge At how many points along the height of the geometry the radius changes At which heights the radius changes The radii at those points

The sponges are places according to a random grid, and each one is slightly different from each other, like the sea sponges in real life.

Patterning

Gray Black White, Linda Halcomb, 2010. https://lindahalcombfineart.files.wordpress. com/2010/10/gray-black-white-1.jpg

Conceptualisation

Pattern of circles drawn according to the brightness of this artwork projected onto the sponges

To be able to create the almost random and complex appearance of this sponge a basic building block on one branch was repated many times at different points along the main branch.

Parameters branch

The length of each branch The angle of each branch The points at which the smaller branches spring from their mother

Conceptualisation

1. Achim Menges and others, ICD/ITKE Research Pavilion 2013-14 (Stuttgart: University of Stuttgart, 2013) <http://icd. uni-stuttgart.de/?p=11187> [accessed 16 March 2015] 2. David Benjamin and others, <http://biocanvas.net/post/77015393190/bands-of-cellulose-in-xylem-cells-of-arabidopsis> [accessed 16 March 2015] 3. Achim Menges, ‘Material Computation’, The New How, Princeton University School of Architecture, 19 November 2014. 4. Achim Menges and others, ICD/ITKE Research Pavilion 2013-14 (Stuttgart: University of Stuttgart, 2013) <http://icd. uni-stuttgart.de/?p=11187> [accessed 16 March 2015] 5. David Benjamin and others, <http://biocanvas.net/post/77015393190/bands-of-cellulose-in-xylem-cells-of-arabidopsis> [accessed 16 March 2015] 6. David Benjamin, ‘Bio-design’, The New How, Princeton University School of Architecture, 12 November 2014. 7. University of Pennsylvania, David Benjamin < http://www.design.upenn.edu/architecture/graduate/events/david-benjamin-adaptation> [accessed 16 March 2015] 8. Stiny, G. and James Gibbs. (1971) “Shape Grammars and the Generative Specification of Painting and Sculpture”, in paper submitted to IFIP Congress. 9. Ibid. 10. T.W. Knight, Shape Grammars in Education and Practice (Cambridge: Massachusetts Institute of Technology, 2000) <http://www.mit.edu/~tknight/IJDC/> [accessed 7 March 2015] 11. Ibid. 12. T.W. Knight, “Visual+Computing’, Craftwork, Princeton University School of Architecture, 10 April 2014. 13. Michael Hansmeyer, 2D Subdivision Processes (2005) < http://www.michael-hansmeyer.com/flash/2D_subdivision_b. html> [accessed 7 Match 2015] 14. Ibid. 15. Bryan Lawson, “ ‘Fake and Real Creativity Using Computer Aided Design: Some Lessons from Herman Hertzberger” in Proceedings of the 3rd Conference on Creativity & Cognition (New York: ACM Press, 1999), pp. 174-179. 16. Rivka and Robert Oxman, Theories of the Digital in Architecture, (London: Routledge, 2014), pp. 1-8. 17. Tim Abrahams, “Computers in Theory and Practice”, The Architectural Review, 26 April 2013. < http://www.architectural-review.com/essays/computers-in-theory-and-practice/8646960.article> [accessed 18 March 2015] 18. Shoei Yoh+Architects, <http://www.japan-architects.com/en/yohshoei/projects-3> [accessed 17 March 2015] 19. Canadian Center for Architecture, Archaeology of the Digital, <http://www.cca.qc.ca/en/exhibitions/1964-archaeology-of-the-digital> [accessed 17 March 2015] 20. Benoit Palop, Fathers of teh Digital Architecture are Reunited in a New Exhibition, < http://thecreatorsproject.vice. com/blog/the-fathers-of-digital-architecture-are-reunited-in-a-new-exhibition> [accessed 17 March 2015] 21. Kostas Terzidis, Algorithmic Architecture, (Boston: Elsevier, 2006), p. xi. 22. Mark Burry, Computational Design Thinking, ed. by Achim Menges and Sean Ahlquist, (West Sussex: John Wiley&Sons, 2011), p. 112. 23. Ibid. p. 113. 24. David Kohn, “Gaudi’s Sacred Monster: Sagrada Familia, Barcelona, Catalonia”, The Architectural Review, 25 July 2012. < http://www.architectural-review.com/gaudis-sacred-monster-sagrada-familia-barcelona-catalonia/8633438. article> [accessed 17 March 2015] 25. David Benjamin, ‘Bio-design’, The New How, Princeton University School of Architecture, 12 November 2014.

Images 1. <http://icd.uni-stuttgart.de/?p=11187> [accessed 16 March 2015] 2. <http://icd.uni-stuttgart.de/?p=11187> [accessed 16 March 2015] 3.<http://biocanvas.net/post/77015393190/bands-of-cellulose-in-xylem-cells-of-arabidopsis> [accessed 16 March 2015] 4.<http://www.forbes.com/sites/bruceupbin/2014/09/10/whats-a-software-company-doing-buying-an-architecturefirm/> [accessed 19 March 2015] 5. <http://syntheticaesthetics.org/residents/federici-benjamin> [accessed 16 March 2015] 6. < http://www.michael-hansmeyer.com/flash/2D_subdivision_b.html> [accessed 7 Match 2015] 7. < http://www.michael-hansmeyer.com/flash/2D_subdivision_b.html> [accessed 7 Match 2015] 8. <http://www.japan-architects.com/en/yohshoei/projects-3> [accessed 17 March 2015] 9. Mark Burry, Computational Design Thinking, ed. by Achim Menges and Sean Ahlquist, (West Sussex: John Wiley&Sons, 2011), p. 114. 10.<http://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sagfampassion.jpg/800px-Sagfampassion.jpg> [accessed 20 March 2015]

Conceptualisation

REFERENCES Conceptualisation

PART B.

CRITERIA DESIGN 17

Criteria Design

B1. RESEARCH FIELD M a t e r i a l Pe r f o r m a n c e

Enhancing the performance of the material or utilizing the material properties to inform the design; the idea of material performance is mostly explained with the former definition, however a second approach is emerging with the aid of parametric design tools. The properties of the material are being researched not necessarily to improve them, but to take advantage of them in the form finding process itself. Achim Menges describes this method as : “Computation provides a powerful agency for both informing the design process through specific material behaviour and characteristics, and in turn informing the organisation of matter and material across multiple scales based on feedback from the environment.“ 1

Tibbits too recently started to look into this potential of materials from the nature in what he calls ‘4D printing’: “self-assembling non-mechanical systems that are actuated not by a power source per say but rather by a material’s inherent properties and its programmable form,”4 where the fourth dimenstion is the time. Two years ago one of the graduate students in the Civil and Environmental Engineering department at Princeton, Alex Jordan, chose to work on a similar research of material performance and parametric design, yet picked quite a different material; chocolate, which he described as: “This exploration of material proves important to choosing forms that express structural and aesthetic values, not just for Willy Wonka, but for designers who wish to engage in material-driven design exploration. 5 Maybe an actual building out of chocolate is not viable, yet, but I think what his research demonstrates is different potential every material inherits and can be used to wards inspiring the design. He made different prototypes out of chocolates of different composition with different methods of form-finding such as hanging hanging cloth, saddle and inverted branch, thus integrating design and construction.

come a generative driver rather than an afterthought in design computation.” 6 As stated in A4. Conclusion to part A I am interested integrating the culture/traditions with computational design. One of the main aspects of vernacular architecture is the attention given to and exploration of materials. An important part of that was the usage of different woods for different purposes: different parts of a house, different furniture and tools. If it was not for the myriad chemicals and processing methods today timber structures and object would be changing all the time. This would be seen as a design flaw, but maybe by manipulating them with the parametric design tools such natural properties of materials can be utilized for the design rather than being an impediment to it.

He calls this approach ‘morphogenetic design’, that is material forming its shape in time2 What this kind of approach brings to the design is that the structure/form is shaped by its environment thus bringing together a better-informed biomimetic design. Achim Menges and Steffen Reichert criticizes the method in climate-responsive architecture that it depends totally on the usage of technical equipment to perform according to the designer’s goal when the systems in the Working with wood in previous projenvironment achieve this only through ects with ICD Achim Menges argues the structure of the material. 3 Being that “Material information should beinspired by biomimetic design Skylar 4. Skylar Tibbits, 4D Printing, <http://www. 1. Achim Menges and Steffen Reichert. ‘Material Computation: Higher Integration in Morphogenetic Design’, Architectural Design, 82 (2012). 2. Ibid. 3. Ibid.

Criteria Design

biomimetic-architecture.com/2013/skylar-tibbits-4d-printing/> [accessed 24 March 2015] 5. Alexander Jordan et al, ‘Material Driven Design for a Chocolate Pavilion’, Computer-Aided Design, (2013).

6 Achim Menges and Steffen Reichert. ‘Material Computation: Higher Integration in Morphogenetic Design’, Architectural Design, 82 (2012).

Fig. 1 Chocolate Pavilion, Alexander Jordan, 2013.

Fig. 2 4D printing: self-folding strand into 3D cube, SelfAssembly Lab, MIT and Stratasys. Criteria Design

B2. CASE STUDY 1.0 Vo u s s o i r C o l o u d , I w a m o t o S c o t t

VoussoirColoud is an installation made by the LosAngeles-based practive IwamotoScott for the gallery of the Southern California Institute of Architecture. The goal was to explore a structure under pure compression and ultra-light material system. The design was inspired by the works of Frei Otto and Antonio Gaudi, who used hanging models for form-finding. Similar methods were also used in this project. 6 The grasshopper script of the design only takes in a couple of points to form the starting points for a cell diagram and applies spring forces on lofts created with these cell curves to form the shape of a â&#x20AC;&#x2DC;relaxedâ&#x20AC;&#x2122; spring.

Fig. 4, 5, 6. Voussoir Coloud, IwamotoScott, 2008. 21

Criteria Design

original project mesh In the original projects vaults are created by applying spring and an upwards force on a pyramid-like structure.

spring forces on mesh edges upwards force on vertices

mesh when spring edges reach their rest length

parameter: number and placement of vaults

after forces are applied

top view

parameter: initial loft

Criteria Design

parameter: spring forces

Using geometries from previous algorithmic sketches

Inco rp o r a ti n g o th er p ro jec t s ; T h e Mo r n i n g Li n e, A r a n da La s c h

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In my first iterations I tried to see how different shapes would change when the same forces are applied to different lofts. The first trial only changes the number and location of the points from which the vaults are created. In the first two iterations the shape does not differ greatly from the original project, but as can be seen from the third iteration when points get too crowded the meshes get distorted and form an unbuildable structure. However, in the first two iterations too having a denser structure would create a different experience when people walk through the vaults and the light pattern formed by the voussoirs would completely change. The second trial changes the initial geometry from which the final vaults are made, however starting from an independent loft by itself as opposed to curves from a voronoi diagram that is connected makes it harder to connect the lofts. The easiest solution to this problem I could find was to bring the lofts closer to each other which made them overlap. The last two iteration was made by starting with different geometries (a hexagon and circle instead of a rectangle) to form the lofts that are placed at exact distances that they connect. As much as these lofts created interesting structures it is hard to play with the number of vaults as their distance and rotation from each other need to be carefully adjusted one by one. For the next trials I used a similar shape to the original form, but added a curve pattern on it to use as an extra spring force with different stiffness and rest length. For instance, it can be seen that in the second trial where the spring is less stiff ends up at a more ‘relaxed’ structure. However, decreasing the stiffness and rest length too much ends up at a mesh like the third one that is completely distorted where the mesh edges stray too much away from each other. I furthermore tried to apply those forces on completely different structures, first on Aranda Lasch’s Morning Line fractal geometry and then on a geometry I had created in a previous algorithmic task. As this project is about material performance a tessellation structure like the Morning Line did not fit it, however a rounder structure as opposed to the polygons on the previous page ended up in a shape that is very different after the forces are applied. As my research field is material performance I think the most important criteria is to modify with the forces applied on the structure as much as possible. As much as the forms when I added new forces are not as ‘legible’ and ordered as the others, I think as I learn Kangaroo more they can be pushed to different limits.

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B3. CASE STUDY 2.0 Large-Scale Deep Sur face, Sean Ahlquist, 2011

For case study 2.0 I did not pick one project but rather the general work on Sean Ahlquist, who works on tensile structures and membranes. I mainly worked on to create a form similar to the diagram above; assuming that I had some meshes in place of the elastic fabric Ahlquist mainly uses and lines that act as the ropes that connect the fabric structures to each other as well to some point on the perimeters of the room. Building on case study 1.0 I used similar spring force physics with Kangaroo add-on to Grasshopper to simulate the tensile forces that deform would deform an elastic material.

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Algorithm number of sides

distance polygon

loft

offset

radius

anchor points ends of cables

stiffness

length lines for ropes that pull the mesh from vertices of the mesh

direction

run the iteration until springs reach their rest length

spring forces on mesh edges and ropes rest length

Second Mesh

add connection

distance

points of meshes to anchor points

direction move and rotate the inital polygon

angle

mesh

loft and mesh

ropes

spring forces

run the iteration

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Improving the algorithm

Create a third mesh with the same algorithm

Create lines through the vertices of meshes to act as ropes

Different iterations by changing the length of ropes between the meshes

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add spring forces on ropes between the meshes

run the iteration until springs reach their rest length

To make the outcomes of the algorithms more similar to the membrane experiments of Sean Ahlquist I added lines that connect the meshes that make the meshes pull on each other as they move. This created the affect that the fabric had on Ahlquistâ&#x20AC;&#x2122;s projects as they do not have some stable anchor points and pull an push on each other by strecthing the fabric and the ropes.

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B4. TECHNIQUE: DEVELOPMENT

To further investigate the algorithm from case study 2.0 I experimented with different forms and forces. First, I started with a completely different, two dimensional mesh and applied an upwards force as well as the same spring forces from case study 2.0, and tried different iterations by changing the rest length and stiffness of the spring, the length and stiffness of the ropes that pull on the meshes and the length of the ropes that connect the meshes to each other. In the experiments on the next pages I kept th eforces the same but changes the form and integrity of the initial geometry to see how the openings in a structure might change the deformations. The experiments that I found the most successful are the ones on the left and the next page that all use the same initial form, but has different amount or type of forces because I think that by focusing on one, simple structure I could better come up with a form that deform a lot. similar to the outcomes of case study 1.0. Furthermore, as the time step diagrams show some of these structures keep moving and deforming in time, and some of them do not even come to a stop. I think by using this kind of an algorithm I can better simulate morphogenetic design that I explored in B1 as these iterations also seemed to have the fourth dimension of time.

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after the forces are applied

Initial shape

parameter: length and stiffness of ropes

parameter: rest length time steps rest length

0.4 (of the initial length)

0.6

0.9

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parameter: stiffness of the springs

stiffness

100

time steps of the last iteration with 1250 stiffness

parameter: location of the meshes with relation to each other

time steps of the last iteration

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500

750

1000

1250

Starting with a planar mesh Different number and location of anchor points

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parameter: stiffness of cables and geometry

top view

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meshes with different size of openings to see if deformations would differ

more experiments with the third and fourth iterations

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B5. TECHNIQUE: PROTOTYPES

As the case studies I had investigated are about material performance I tried to experiment with different material and documented how they deformed when the forces on them and their shapes changes. The photos on the next page show the different force experiment. I created a string-chain to simulate the meshes I had the case study two on put different kinds and numbers of coins on it to change the weight and the location of the force to see how the deformation differed in each trial. With the same type of string I created shapes similar to Sean Ahlquistâ&#x20AC;&#x2122;s project and changed the location of the strings that pulled on them to see how they deformed and interacted with each other. Then I experimented with an elastic fabric to simulate the plane meshes that had different shapes and number of holes to experiment if the openings change the deformation. There were subtle differences however, especially, when compared the coin experiment, the change was not that visible. What I have been experimenting in the previous case studies and these prototypes was to find the geometry and force that led to the biggest changes in the initial shape. Therefore, I find the experiments with the string chain to be the most successful as also the photos show how much the string deform.

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B6. TECHNIQUE: PROPOSAL

The site that I will be working on for part C project is the start of the walking path where Yarra River and Merri Creek meet. The reason why I chose the area was totally irrelevant to the technique I have been developing throughout the case studies. I chose this site because the point where Yarra River and Merri Creek met was where the Treaty between the indigenous Australians and John Batman was signed, and I think that more than everything Merri Creek lacks a connection to Wurundjeri people who were the local tribe living in what is now Melbourne. However, walking around this area and further contemplating this topic helped me find an exact site that I feel that I would be able to able the material performance investigations. The site that can be seen on the map on the next page is one of the points where the Eastern Freeway and Merri Creek get closer to each other, thus narrowing the green areas on the banks of the creek. Yet, still, as the photo shows, there are many trees in the area. But, more important than their number these are Manna Gum trees, from which the name Wurundjeri comes from. Bringing together my experiments in different materials and forces I want to create rather an â&#x20AC;&#x2DC;art installationâ&#x20AC;&#x2122; more than an architectural structure, and I think those eucalyptus trees can form the site boundaries as much as some of the forces that affect the structure.

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The fact that those trees are what the local people are named after to me they imply a silent presence of the indigenous in the area, but I want to emphasize how their presence changed and diminished over time with a structure that is â&#x20AC;&#x2DC;morphogeneticâ&#x20AC;&#x2122;, that is shaped by the outside forces; rain, wind, people, that make people stop and have a different experience that emphasize the change from the environment of these eucalyptus to the freeway that passes right by it. Some of the iterations in part B4 that I liked the most were the ones that kept moving with the spring and unary forces on them and never came to a stop. I would also like this structure to move and change constantly, and its ultimate end would be to disintegrate under the influence of all those forces

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B7. L E A R N I N G O U TCO M E S

As my main concentration of study is civil engineering and architecture I always try to integrate the two areas, and I feel that learning about how material performance can be simulated through computational design tools and influence design provided me a new area to explore to further bring together the physics of engineering and the art of architecture, and continuing with the material performance as my main focus in part C project will be another way to incorporate engineering into art. One of the main problems I had throughout part B was to get comfortable with Kangaroo, which I had not used so intensively before, but I feel that I improved myself from B2 to B3 and was able to apply to to a wide array of geometries with more varied forces that produced better outcomes. Yet, to move onto part C more confidently I think I need to improve my grasp of the computational design tools we ar eusing even more, as the focus I chose for part C will require a more carefully thought-out algorithm and a better physics simulation that is closer to real life since the meaning and experience I want it to create is more sensitive.

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B8. ALGORITHMIC SKETCHBOOK Patterning components

Parameter

Grid Size

Cull Pattern

Voronoi cells with smaller radii

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As can be seen from the cull patterns i and iii even one difference can create two very different patterns. The patterns on this lofted geometry (first three images left to right) were created by using different list components such as jitter and cull pattern to change the curves created with Interpolate component. The fourth surface was created with Surface Morph component to apply the surface from the initial exercise on the left page on the surface of the geometry.

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REFERENCES 45 25

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1. Achim Menges and Steffen Reichert. ‘Material Computation: Higher Integration in Morphogenetic Design’, Architectural Design, 82 (2012). 2. Ibid. 3. Ibid. 4. Skylar Tibbits, 4D Printing, <http://www.biomimetic-architecture.com/2013/skylar-tibbits-4d-printing/> [accessed 24 March 2015] 5. Alexander Jordan et al, ‘Material Driven Design for a Chocolate Pavilion’, Computer-Aided Design, (2013). 6. Achim Menges and Steffen Reichert. ‘Material Computation: Higher Integration in Morphogenetic Design’, Architectural Design, 82 (2012). 6. < http://www.iwamotoscott.com/VOUSSOIR-CLOUD> Images 1. Alexander Jordan et al, ‘Material Driven Design for a Chocolate Pavilion’, Computer-Aided Design, (2013). 2. < http://www.selfassemblylab.net/img/MIT_4D%20PRINTING/Stratasys_MIT_Cubefolding_Combined.jpg> 3. < http://www.iwamotoscott.com/VOUSSOIR-CLOUD> 4. < http://www.evolo.us/wp-content/uploads/2011/06/iwamotoscott-cloud-4.jpg> 5. < https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQH8SxEVtGmATUOGl2y0OyfCL0JHyhMSgs81gjdw1G e1oftMKan>

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PART C.

D E TA I L E D D E S I G N 47

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Mapping in 3D Conceptual abstraction of place through planar mapping is informed by profound cultural and metaphysical concepts. The circle-path iconography - a primary signifier of meaning is inherently linked to archetypal cartographic designs that are incised on tjurunga (sacred objects). Such coded mapping of Country, aestheticised with innovative colour fields of dots, has moved from the periphery to mainstream. From the National Gallery of Victoria Australia Indigenous Art: Moving Backwards into the Future exhibition

Tim Leura Tjapaltjarri and Clifford Possum Tjapaltjarri Spirit Dreaming through Napperby Country (detail) 1980

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C1. DESIGN CONCEPT Looking into material performance and tensile structures throughout part B was an important process to learn many skills in computational design and Grasshopper, yet it was hard to try to incorporate it into the design /brief/ I was certain I wanted to follow; to bring some presence to the indigenous culture. By the time of the interim presentation I was certain of the design /brief/project I was pursuing; but didn’t have a ‘form’ used the principles of material performance that I could achieve this with. My vague idea was ‘a sort of tensile structure hung between the trees’ that didn’t get anywhere.

I had presented my idea as an art installation, but one critique was that it still required an architectural purpose along with the learning objectives of this studio. A useful feedback that got me thinking that I got in the interim presentation was how people were going to experience it; do they need to look at it from a distance or does it pull people in? The answer was that it needed to be a sort of a ‘distraction’ and ‘disruption’ and required interaction. Architectural purpose is to create a sense of the place/space, to distract from the noise but bring attention to it at the same time, to make people stop at that point and interact with some-

thing that represents the indigenous. Our tutor Sonya’s cell study exercise helped me bring together my ideas and knowledge and observation of the site and work for a solution:

Identify main conditions of the site: groups of eucalyptus trees with wide open spaces in between, bordered by Eastern Freeway with fence, noise from the freeway, shade from the trees, high above the creek, no benches, on a slope

Identify parameters: locations of the trees and paths, their sizes

I kept working on similar Kangaroo exercises from part B:

However, being a cumbersome process Kangaroo seemed to inhibit the possibilities of the design when it came together with the intricate Aboroginal experience I wanted the piece; for instance I tried to incorporate symbols used in indigenous art and create them with Kangaroo forces, but this requires a much more complex Kangaroo script than tensile force simulations.

A visit to the indigenous art exhibition at the National Gallery of Victoria and the National Gallery in Canberra had brought to my attention how the indigenous artists represented the places in their paintings and how their art always had a relation to the place. In a way they map the spaces with their

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paintings. Thus, it was suitable that I had chosen the characteristics of the site; the location of the trees and the paths, as the parameters of the design, and I could create a ‘map’ that followed the ideas of the Aboriginals in a new way and represented and brought forth this site. In a way combining the

patterning and material performance fields I used force fields to represent those forms, trees and paths, on the site; after all they too were ‘forces’ making people go in certain directions.

Technique

I narrowed down the site I had chosen to an area that had an adequate amount of tree and paths that could simulate an Aboriginal painting as much as possible but not be too complex when implemented in Grasshopper. The trees and the paths are marked with a number of points and lines respectively according to their sizes, and these points and lines are plugged into the algorithm below.

Algorithm

Trees as points

Paths as lines

point charge spin force line charge

Create a vertical surface the size of the site

merge fields

field line

location

measure strength of field at the location of trees

surface mesh

apply spring force and gravity

circles remap the values

relaxed mesh

radius

map on the mesh

When brought together these forces influence each other and create a pattern by drawing lines through the direction of the tensor vector. Drawing a circle at the location of the trees according to the force field places them on ‘the map’, accurate to the their sizes as because there were more points in place of bigger trees the force is bigger. As much as the main part of the algorithm that creates the design is about patterning and force fields in Grasshopper the next big point is about how it will behave once this pattern is fabricated, where I can use the previous Kangaroo tensil structure experiments. I envision that it will be created out of a material like string and making further use of the trees at the site hung in between the trees for the people to ‘play with’ and expereince it.

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This is the first result of an experiment with few points and lines.

Construction Process

As can be seen from this diagram the Grasshopper algorithm results in too many lines and the end result is not structural by itself, therefore I will need to clear the pattern and add patch lines to make sure it has a sound skeleton by hand.

Print the pattern to scale

As this is to be a tensile, movable structure I think its main pattern will need to be created by hand as opposed to computational methods. I plan to use strings for the lines, which can also give more a sense of connection to indigenous art as weaving is important in Aboriginal crafts.

Circles as joints Start with the boundary strings on three sides

Tie the strings according to pattern on the paper

Depending on the structure thinner patch strings in between might be needed, but might give a too ordered look compared to the rest 53

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To give different lineweights to the strings more structural ones such as the border line will be made out of several interwined strings.

Ensure all the strings stay in their places throughout

The circles that denote the trees can also act as joints for the strings to attach to. They can be fabricated in several ways:

3D print them as joints with hollow arms to put the ends of the strings through Laser cut them with mdf or similar material to glue the strings onto or laser cut them as two layers, put the strings in between, and tie the end inside the circle Make them with interwined strings like the boundary to set them apart from the pattern strings

I have been referring to my project as a â&#x20AC;&#x2DC;blanketâ&#x20AC;&#x2122; that separated the natural/ cultural side with the European/modern freeway: a grand, vertical blanket that comes on the way of people, and incorporates the part B material performance/tensile structures studies. It is to be hung onto the trees in the site I have chosen across one of the walking paths, thus forcing people to interact with it.

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C2. TECTONIC ELEMENTS & PROTOT YPES Design Development

These are different patterns created by changing the parameters of the different force fields one by one; such as the charge of the point and lines forces, decay of charge, radius of the spin force, grouped by the force that was changed. My criteria was to come up with a pattern that looked the most organic with different curves and simulated the site the most. 55

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I decided on the bottom, left-most pattern on the opposite page; it showed a clear separation the line forces, the paths, create and the spaces created where the trees are. Circles with centers as the tree points and radius as the remapped value of the force field at that location created the joints where the strings can be tied for a more sound structure and clear separation of the strings for the pattern.

I cleaned out some lines in places where it got too crowded and would not be feasible when fabricating, and connected the lines to the circles to create the structure.

I continued until all the lines were connected to either a joint or another circle making sure not the change the pattern too much from the Grasshopper outcome.

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FINAL PATTERN

After having produced the final pattern I edited it further to create the structural parts of the design. The top diagram on the opposite page show the final â&#x20AC;&#x2DC;blanketâ&#x20AC;&#x2122; with the circles turned into proper joints with arms for the strings to attach to. The diagram below shows how it would behave when hung vertically from its corner modelled with Kangaroo when the only forces on it are its own weight and gravity, when it is not pulled by a person or wind.

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JOINTS 1

The joint is 3D printed as a whole because the void in the joinr arm would be filled with support material for an object of this size.

The arms are carved out to fit in the strings, and the strings are glued into.

The problem with this option is that although it is fast to 3D print the joints the carve out each arm of every joint would be time consuming. Moreover, as only a bit of the tip of the arm can be carved without damaging the edge the strings cannot be attached very firmly. Also the 3D print material contrasts too much with the organic look of the string.

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A second way to fabricate a 3D printed joint would be to model it as upper and bottom halves.

The string is placed and glued inside the arms of one side, and the other half of the joint is glued on top.

This method helps to attach the strings more firmly as all length of the arm is hollow. However, it is again time consuming to make sure the two sides of all the joints are attached properly and firmly.

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3 The third option is to laser cut two mdf copies of the joint. The ends of the strings are knotted and glued to ensure they woud not come apart and glued onto the arms of one side. The other half is glued on top.

The method had the strongest hold of the strings as their ends inside the joint had knots that prevented them from coming out even if they moved in between the mdf pieces. The colour of mdf also fits the string better and gives an overall more organic look.

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C3. F I N A L

M O D E L

As much as the main premise of this studio is about computational methods I feel the final model that was a mixture of manual and digital fabrication methods justified this juxtaposition. For instance, joints keep the whole structure firm and together, but a force on one of the strings affect all the rest of them. If a string is tied to tight or loose in one place it affects the rest, and pulling from side corner moves all the structure. The mdf joints keep it down, but the light strings make it very easy to move. It can easily be moved by people, wind, and shaped by any force. As it is easily affected by outside forces its shape changes in time too. When pulled or folded the shape of that area changes a bit, and as more forces is put onto it in time it would probably keep that shape it got, thus giving it a morphogenetic aspect that I had studied in part B; the structure forms its own design in time. Moreover, the strings and joints would also be affected by conditions like rain and humidity, getting swollen and disintegrating in parts.

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FABRICATION DETAILS

Another artifact that had attracted me at the National Gallery was the hand-weaved baskets by the indigenous people. I tried to incorporate some of the techniques I observed on the model to further connect it to the indigenous culture.

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To make the boundary strings as seen on the top photo I used three strings to differentiate it from the pattern strings. The first string is kept straigth and the second string is coiled around it spirally similar to the arm of the weaved basket on the opposite page. Then the third string is again wrapped around the two strings firmer than the second one. To make the circle that had formed in the middle of Grasshopper force field pattern I followed the same method as shown on the bottom photo.

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C4. LE A R N I NG OU TCOMES

As with most other people in all my previous studios we had given the brief and the specific site, and was supposed to design that particular structure; whether it is a canopy or a building. I think the main skill I developed in this studio was to ‘interrogate the brief’ and the site, and changing the brief instead of just following the task given to me. Among the learning objectives of the studio that I feel I had developed greatly is ‘the ability to generate a variety of design options’. In previous design studios too I almost always change my project after my very first proposal and other small changes are constantly made to the design too, but I had never considered so many different iterations and options for one project as in Studio Air. I had come with some knowledge of computational design and Grasshopper, but I definitely improved my skills a lot in these aspects too. To try to create a whole project with computational software instead of just creating some small parts of it was a new challenge too, and I think this studio helped me greatly to see what I can do with those tools and where I can take them.

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