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Digital Design - Module 02 Semester 1, 2019 Yuxin Shi

(932984) Joel Collins + Studio 15


Critical Reading: Kolerevic B. 2003. Architecture in the Digital Age

Kolerevic described three fundamental types of fabrication techniques in the reading. Outline the three techniques and discuss the potential of Computer Numeric Controlled fabrication with parametric modelling. (150 words max)

One of the technique is two dimensional fabrication, which is also called CNC cutting, is the most widely techinique. It includes many techniologies in it, such like plasma-arc, laser-beam and water-jet. They are using for cutting hard materials, while among these technologies, there are also some differences, for example, laser-cutter can only cut materials that can absorb light. The second technique is subtractive fabrication, it will use electro-,chemically- or mechanically-reductive process to remove the volume of material from solid. It is a extension of two dimensional cutting. It can use some very thin materials which 3D printing can not. The third technique is addictive fabrication, it is often referred to as layered manufacturing, because it will add materials in a layer-bylayer fashion. It is now widely used in 3D printing.

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SURFACE AND WAFFLE STRUCTURE Surface Creation

This is gene pool, which can control This is to let the percentage, so the square becomes to a I can choose any 150x150x150 point on the edge

This commond is for creating a 150x150 square base

This command is for making wires of the surface

This commond here is to choose point on the edges of the box.

This command is to show the four edges of the surfaces.

And at last, surfaces are made, and I use these surface in

This is the whole process of making a surface, the first step is to set up a rectangle base plane, then extrude it. After that, I can choose the edge of the box by changing the numer sliders, I add a gene pool command to select the point and the domain is from 0 to 100.00, so I have a lot of choice. Then, I create lines with these points and I use loft command to create a lofted surface through a set of section curves. Compare with the rhino, grasshopper is more difficult to create surface, but much easier to change the shape of the surface, it save a lot of time by changing the surface with number sliders.

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Isometric View

These are the panels of my surfaces, on the one surface, there are 50 triangles and one each of them, there are three openings, so when the light pass through them, it will create beautiful shadows. On the other surface is three different types of patterns, one is triangle, one is square and on is half 3d triangle and half 2d triangle. I put attraction points, so the heights are variable.

This is my waffle structure, there are eleven horizontal layers and on two of the sides have vertical supports, There are both oprnings on the horizontal and vertical segments, so they can fit with each other.

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This is the first kind of panel on this surface, which has half 3d and half 2d triangle

This is the second kind of panel on this surface and this is a 2d square In each grid, there are two triangle

This is the third panel on this surface and from the middle to surrounding area, the height shows a decreasing tendency

There are little openings on each triangle to let the light pass through

These are the 3d panellings, the height of these panels are decreasing from the top left corner to bottom right corner

Between the verticle and horizontal waffle, there is a small opening to make sure they can fit with each other well

EXPLODED ISOMETRIC 2:1 0

10

30mm

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SURFACE AND WAFFLE STRUCTURE Laser Cutting

After I finished making my laser cutting model in grasshopper, I baked it and explode them in rhino. In order to let my file become clear, I divided them into three parts, the top part is my waffle sturcture, there are combined with eleven horizontal segments and eight vertical segments, there are openings on it, so they can fit together. the left part in the bottom is one of my surface, they are combined with three different panels, one is half 3d, half 2d trianngle, one is square and the other is 3d triangle. The right part in the bottom is the other surface, I divided them into fifty small triangles and there are three openings on one triangle. When I sent them to the fablab, I added tabs on them,so it will be easier to adhere them together, also, to avoid the overlap, I draw some of the tabs. I put them in different layers, so some of them are cut by the laser, while some of them just have a trace on it which is easier to be folded.

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SURFACE AND WAFFLE STRUCTURE Matrix and Possibilities

Lofts

1.1

1.3

Key

1.4

{0,0,0}

1.2

Attractor / Control Curves {-75,-150,13 5} {-15,-150,13 5}

{-75,-135,150}

{150,60,150} {-75,-135,150}

{0,15,150}

Grid Points

{0,0,150} {0,-135,0} {135,15,0}

{0,-150,-15}

{-135,15,0}

{0,0,0}

{0,0,0} {0,-135,0}

{0,0,0}

{0,0,0} {Index Selection}

{Index Selection}

Paneling Grid & Attractor Point

2.2

2.1

Attractor / Control Points (X,Y,Z)

{Index Selection}

{Index Selection}

2.3

2.4

{51,62,0}

{185,23,0}

{595,103,0}

{165,55,0}

Paneling

{Attractor Point Location}

{Attractor Point Location}

{Attractor Point Location}

{Index Selection}

3.1

3.2

3.3

3.4

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In this matrix, I try to create several kinds of surfaces and panels. First is different surfaces, this is very interesting that we just need to adjust the number slider and the surface will have a big change, so it is very convenient to create different surfaces. And I create four surfaces, some of them are nearly parallel to each other, but some of them are far away at the bottom and close at the top. Also, there are variety of panels, I made triangles and I also made some opening on two of them.


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SURFACE AND WAFFLE STRUCTURE Photography of Model

My idea of the laser cut model is an open patio, there is a big open space around by the waffle sturcture, this sturcture is aiming for sovling the light problem and provide people more privacy. There are two patterns on it, one has openings on it and when there is light pass through it, it will create shadows on the ground. On the other surface, have three different panels and the height of them are different, from the centre to outside area, the height shows a decreasing tendency, when there is light, there will be shadows on the surface.

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SOLID AND VOID Surface Creation

Use domain box command to create a box defined by a base plane and size domain

Use surface domain number command to create grid that from surface domain by number

These commands here are for creating a surface and prepare for the following steps, first, we need a domain box command to create a box defined by a base plane and size domain and then we use deconstruct brep command to deconstruct a brep into its constituent parts. After that we use surface domain number command to create grid that from surface domain by number, its connect with a number slider, so we can change the number of point on each surface.

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These commands are to move the points

These are to set a attraction point, when moving the point, the other points will move at the same time

These commands are to create the points in the box and set the attraction points, with these commands, the shape and location of the geometries inside can be changed. By changing the number sliders, the distance between each line of points will be different and also we can move the attraction points and other points will follow the attration point to have some transformation.

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These commands are to make a sphere and by changing the number sliders below, the size of the sphere will be different, also by

Except sphere, other geometries

choosing different surface commands, te can put different geometries

can also be added in the box

When changing the number sliders, the size of the geometries will be changed

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SOLID AND VOID Isometric view

This is my task B volume which combined with toruses and spheres. When I change the size of the sphere and torues, they will create different shapes, for example, when the diameter of the torus is bigger than the sphere, it will lloks like a planet. I think it is an interesting shape, so I choose this shape and when I use booleanintersection in greasshopper. It cut a void like a planet inside the square and in my design, people can sit in the square and there are ellipse windows on the four side of the square, so people can look out when they sit inside. People can enter to the architecture from one side of the square and see the view from the four side.

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Grid Manipulation

1.1

{-129,-129,255}

1.2

1.3

Key

1.4

{0,0,0}

Attractor / Control Points (X,Y,Z) Attractor / Control Curves

{15,-139,219}

Grid Points

{-129,96,38}

{Point Attractor}

{Curve Attractor}

{Random Attractor}

{Opposing Point Attractors}

Object Variation

2.1

2.2

2.3

2.4

Object Transformation

3.1

3.2

3.3

3.4

When doing task B, I choose to make a arch which has a void on the top, so it can let the sunshine in, a pavilion with diiferent sizes of arch and a developed pavilion which looks more modern and people can sit inside and see the view from both side of the pavilion..

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The size of the sphere and torus are different that at the top, the sphere and torus are larger than the sphere and torus at the bottom. And the geometries near the centre are larger than the geometries in the surrounding area

The geometry is comsitituted of sphere and torus and there are openings on the surface of the box

EXPLODED ISOMETRIC 2:1 0

10

30mm

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SOLID AND VOID

This is my first 3d print design, this is a pavilion and the size of eacb entrance is different. people can enter to the pavilion from the four side of this pavilion. In my design this is a place for people to gather and it also a shelter for people inorder to avoid rain and strong sunshine.

This is my second 3d print design which is a arch with a hollow on the top, the idea is from the first design, when I do some improve on the first one, I think a pavilion is too common, so I change it from a original pavilion. And it is a palce for people to gather and have a reat, when there are sunshine pass through the hollow on the top of the arch it will be very comfortable.

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This is my third design, it is a pavilion, but compare with the pavious two, this is more modern. In my design, people can enter the pavilion from one side of this pavilion and this pavilion provide sitting area for poeple. Moreover, there are openings on four side of the pavilion and among these four, three of them look like ellipses and from these people can see the view.


SOLID AND VOID

Photography of Model

This is the pysical model of my first design, in this model there are one type of geometry which is sphere. In this 50 x50 x50 square, there are two different sizes of spheres, so the four entrance of the pavilion are different, so it will makes the pavilion not too common. When there are light pass through the circle openings it will create a shadow on the ground.

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This is the second physical model of my design. In this model I use one geometry which is sphere, compare with my first model, there are some similarities and difference. First, there are both some arches and there are opening for people to enter. However, it has more open space and when people enter to it from the door, they will see a big hollow on the top of this architecture and light can go through this and there are less shadow, so it will be a good place for people here to enjoy the sunshine.

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This is the second physical model of my design. In this model I use one geometry which is sphere, compare with my first model, there are some similarities and difference. First, there are both some arches and there are opening for people to enter. However, it has more open space and when people enter to it from the door, they will see a big hollow on the top of this architecture and light can go through this and there are less shadow, so it will be a good place for people here to enjoy the sunshine.

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Appendix

Process of making panel in Task A This step is to divide the surface into 25 parts

The two polyline commands are connecting a number of points

This command is to deconstruct a brep into constituent parts

The boundary surface command here to create planar surfaces from boundary edge curves

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These six commands above are to pull a point to variety geometry, then create

Appendix

Process of making panel in Task A

a numeric domain and remap the numbers into a new numeric domain

This command is to find the closest point on the surfaca

This command is to evaluate local surface properties at a uv coordinate

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In this four steps, I create lines between points and explode the curves into small segments


Appendix

Process of making panel in Task A

First use weavebird’s mesh from lines to to transform al ist of lines in a mesh

This mesh area command is to solve mesh area properties

This sort list command is to sort a list of numereic keys

And the first panel is created The face boundaries command are to convert

The scale command is to scale an object uniformly in all directions and I add patterns on my surface

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These two commands are to create a loft surface through a set of section curves and shift the indices in all data tree paths


Appendix

Process of making waffle in Task A After I lofted the two surfaces, I began to create the waffle structure

Then I joined the two surfaces together

Using the divide command to divide the vertical line into 10 equal parts

I created a line between two points

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This surface cloest point command is to find the cloest point on the surface and the evaluate surface command is to evaluate local surface properties at a uv coordinate

Use cull index command to remove indexed elements from a list

This sort along curve command is to sort points along a curve

These commands are to divide the horizontal segment into equal parts

Create a line between the points

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Use mvoe command to move the lines created before

And at last the waffle structure was created

These commands are to create the horizontal part of the waffle structure

Loft the two lines

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Appendix

Process of laser cutting model

These are some of the process of making the physical model, the panels are print on the ivory card, some edges are in the laser cut layers and some on the etchs layers, so they are very easy to seperate from the ivory card. it takes me some time to fold the panels, because they are small and they are many openings on it and they are hard. I use tabs, so they can adhere with each others. It is not so easy to let the panels and waffles fit with each other perfectly, because the surface is not a plane. When making the waffle sturcture, because there are openings, so the vertical segments and horizontal ones can fit very well, but I still use glue to adhere them together in order to provent them from aparting.

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Appendix

Process of 3d model

These are my 3d model, I export them into makerbot and then sent to the nextlab, they take me about 2 hours for each model to print. Before I sent them to print, I check the model in order to make sure they are suitable for print.

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