Digital Design - Module 02 Semester 1, 2018 Shin Qin Lim (905494) Han Li Studio 17

Week Three

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

Kolerevic described three fundamental type 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)

The fundamental type of fabrication technique in the reading is the subtractive fabrication. It involves the removal of a specified volume of material from solids using electro-, chemically- or mechanically-reductive (multi-axis milling) process. Another technique is addictive fabrication which involves incremental forming by adding material in a layer-by-layer fashion, in a process which is the converse of milling. Furthermore, formative fabrication is also one of the fundamental types of fabrication technique in the reading by Kolerevic. In formative fabrication, mechanical forces, restricting forms, heat or steam are applied to a material so as to form it into the desired shape through reshaping or deformation, which can axially or surface constrained. Computer Numeric Controlled fabrication has the potential with parametric modeling that data able to be imputed straight from the computer program into the machines computer in order to produce the end product, removing any need for technical drawing or manufacturing drawing.

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Week Three

Surface Creation

The process is started by setting up a 150x150x150mm bounding box to produce two surfaces. The edge of the bounding box is used as the parameter, therefore deconstruct BREP step is conducting in Grasshopper to obtain the edges. List item and divide curve are then adjusted to produce two interesting surfaces with no intersecting. With the use of Grasshopper (surface scrip above), four different type of surface iterations is created.

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Week Four Panels & Waffle

The panelled surfaces are made up of both 2D and 3D panels. 3D panels are all at the same height throughout the whole design to show the consistency. Lights able to penetrate into the volume through the opening of the panels. The protruding form of the 3D panels will also create an interesting shadow when the light is passing through.

The waffle structure is used to support the 2D and 3D panelled surface. The structure is in hollow to give an opportunity for the creation of the interior volume.

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Week Four

Laser Cutting

z8

z3

z1

z2

z6

z5

z4

z7

z0

waffle Z fins

x0 x1

x5

x12 x14

x16

B7

8

A15

A10

6

A27

A11

B9

A1

A25

9

12

A

A22

B10

A1

B11

1

A23

A2

B4

x11

A20 A1

B1

B3

x13

B2

B13

x10

A13

A17

A3

x8 x9

A14

A6

A4

A1

x7

A9

A7

x4

x6

A8

A5

4

A2

waffle X fins

A2

x2

x3

A2 6

After finishing the design in Rhino and Grasshopper, 2D and 3D panels are unrolled for laser cutting. Diagram beside indicates the unroll template for panels and waffle structure. Laser cut file is prepared by separating the cut lines and etch lines into different layers. All the objects are labeled with number beside for easy model building process later on.

B5

2

B1

B8

B6

x15

2D and 3D panels

x17

5

Week Five

The process begins by subdividing a 150x150x150mm bounding box into 9 cubes to get the subdivided cube as the primary parameter. Point attractor effects are then applied to manipulate the grid and transform the shape in order to attempt different variables of shape with different sizes. However, the grid centroid is used for the shape distribution to maintain the consistency of the shape arrangement. The boolean script in Grasshopper is shown above to provide evidence of the design process. Different type of effects such as random attractor and curve attractor have been tried for shape transformation to produce various size of platonic tetrahedron (selected geometric shape).

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Week Five

Isometric

In Task 02, the point attractor distribution method is used in Grasshopper for both grid manipulation and shape transformation with the same value of reference point (coordinate {89,77,76}). This effect tends to pull the grid and shape towards a certain value according to the location of the reference point. The diagram shows the final model with its best section cut to reveal the most interesting spaces. Platonic tetrahedron is the main geometric shape used in this structural design. It has given the void with clearly defined edges due to its structural form. It creates openings in order to give the light passes through the interior volume. The different levels of concavity that created by the point attractor effect also give a visually interesting. In the end, the sectioned boolean model is cut down with an approximately of 25% of its original size for 3D print. The 3D print model has been boolean to become two symmetrical form (Figure is showing in Appendix Task 02).

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Week Six Task 01

Lofts

1.1

1.2

1.3

Key

1.4

{0,0,0}

{-13,-30,30}

{-6,-25,30}

Grid Points

{9,-19,30}

{24,9,30}

{26,-28,30}

{16,-26,30}

{24,19,30}

{-7,0,0}

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

{2,9,30}

{2,-14,0} {9,-1,0}

{-6,-1,0} {26,9,0}

{4,-30,0}

{9,-28,0}

{11,-28,0}

Paneling Grid

{Surface Coordinate}

{Surface Coordinate}

{Surface Coordinate}

{Surface Coordinate}

2.1

2.2

2.3

2.4

{11,62,54} {115,-56,64}

{149,-193,6}

Paneling

{Point Attractor}

{Random Attractor}

{Curve Attractor}

{Regular Grid}

3.1

3.2

3.3

3.4

+

+

Task 01 Matrix The final surfaces (1.4) are selected to develop as they have the potential to create an interesting pattern for the panels. Panels are arranged on the regular grid to attain the same amount of height to maintain the consistency (2.4). 2D and 3D panels are designed with the used of similar geometrical triangle shape and mixed together on these two surfaces to give a visual contrast (3.4).

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Week Six Task 02

Grid Manipulation

1.1

1.2

1.3

Key

1.4

{0,0,0}

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

{101,-306,-31}

{-49,240,-80}

{89,77,76}

{48,96,34}

Shape Distribution

{Point Attractor}

{Point Attractor}

{Point Attractor}

{Point Attractor}

2.1

2.2

2.3

2.4

{34,171,0}

{-6,118,0} {44,107,0}

Shape Transformation

{Point Attractor}

{Random Attractor}

{Curve Attractor}

{Grid Centroid}

3.1

3.2

3.3

3.4

{89,77,76}

{Consistent Scaling}

{Random Scaling}

{Reverse Point Attractor}

{Point Attractor}

Task 02 Matrix The Task 02 model is designed using the point attractor effect on the grid manipulation and shape transformation(1.4 and 3.4). The grid has been manipulated in the same value of reference point with the shape transformation, which is coordinate {89,77,76}. Nevertheless, grid centroid is used for the distribution of shape to maintain the shape arrangement (2.4). Different types of distribution method including curve attractor and random attractor have been tested throughout the design.

9

Week Six

Final Isometric Views Task 01

Task 02

10

Appendix (Task 01)

Process

Four pairs of different surfaces patternations are created using grasshopper with no intersecting between them.

Panels are designed in 2-dimensional and 3-dimensional shape to create a visual contrast.

2D and 3D panels are placed on the surface with different arrangments.

The final design is selected with the use of combination of both 2D and 3D panels.

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Appendix (Task 01) Process

Waffle structure is made using grasshopper based on the two selected surfaces in order to support them.

z8

z7

z0

z1

z2

z6

z5

z4

z3

Waffle structure with both 2D and 3D panels.

x0 x1

x12 x14

x16

A10

6

A11

B9

A25

2

A1 A23

B11

21

A

B1

B3 B2

B13

A2 6

A22

B10

A27

A1

B4

x13

B7

8

A15

A19

x8

x11

A20 A1

A17

A3

x7

A14

A13

A6

A4

A1

x6

x9

A9

A7

x5

x10

A8

A5

4

A2

x4

A2

x2

x3

B5

2

B1

B8

B6

x15 x17

Panels and waffle structure are unrolled and labeled for laser cut.

Model building process with the use of instruments such as pencil, ruler, cutter knife, scissor, craft glue and fold black clips.

12

Appendix (Task 01)

Process

Task 01 physical model.

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Appendix (Task 02) Process

The grid is manipulated using the point attractor distribution method in Grasshopper. It has been changed by adjusting the point in Rhino to get the most interesting pattern of grid.

The shape is distributed based on the grid centroid to maintain the consistency of shape arrangement.

The design has been tested with different geometric shapes.

Platonic tetrahedron is selected as the primary geometric shape in this task. 14

Appendix (Task 02)

Process

Different effects have been tried in grasshopper to produce different type of shape transformations.

The final design is chosen with the use of point attractor effect on the platonic tetrahedron shape transformation. It has then been cut to reveal the interesting spaces of its interior.

The final model is boolean to leave approximately 25% of its original size for 3D print. The structure is cut to become two symmetrical form.

Task 02 physical model.

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