Digital Design - Module 02 Semester 1, 2018 Kang Jing

930892 Xiaoran Huang, Studio 04

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)

Subtractive fabrication means to remove a volume for solid, either electrically, chemically or mechanically. Addictive fabrication allows small pieces of volume to be added gradually layer by laer. Formative fabrication is basically a refoming process which transform a solid into desired shape though mechanical forces. Computer Numeric Controlled fabrication with parametric modelling allows one to create accurate shapes with in a short period of time. In addition, it is easier to manipulate it just by changing the parameters.

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Week Three

Surface Creation

For surface iteration, Iâ€™m interested in the spiral and twisting form. This gives an interesting interior volume as there is variation from wide to narrow (top right hand corner)or from one form to another(1st and last image).

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I encountered difficulty when I tried to transform the curves into surfaces. As the pattern is built on a doubly-curved surface, which means that I cannot Planarsurf. If I create meshes or patches, Rhino would break them down into very tiny surfaces that are definitely unrealistic for laser cutting. Thus, when I triangulate all panels together, Rhino would only be able to rationalise them into developable surfaces, however, the curves are transformed into uniform triangles. Since 2D panel is about precision, in order to obtain the original pattern, I triangulate them individually. By doing so, inevitably there will be gaps between each panel, then I turned on control point to adjust and join them together. Even I adjusted them manually, the curvature of the surface would not by affected since the gaps are neglibile (the model is 15x15x15 cm), and also the curvature can be adjusted during model making process.

Pathes

Mesh The pattern generated when triangulate everything together

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Week Four Panels & Waffle

There is a subtle change from quadrilateral to octagon from the top righthand corner to the bottom left corner. The surfaces are triangulated to give more intricate pattern on the surface. The surface creates by 3D panels contains tall and short pyramids which give the surface an interesting terrian. The two surface forms contrast between sharpness and smoothness, simplicity and intricacy.

The hollow waffle structure creates an interior volume that is twisted. It seems like it is spiral to go up. There is change of shape and volume form bottom to top. The waffle structure at top is parallelogram yet the wattle structure at bottom is in triangular shape.

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Week Four

Laser Cutting

The line quality of laser cut depends on how fast the cutter moves and the power of the machine. These two critical factors are adjusted based on material and size of the things to be cut. For instance, when laser cutting an ivory card, which is a relatively thin material as compared to mountboard, the power of the machine should be adjusted to the lowest and it should move faster to prevent any half cut became a cut through.

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Week Five

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Week Five

Isometric

Admittedly, there are potential problems with 3D printing this form. The short thin columns may snap or even break away if it is not handdled carefully. However, this form is the best to demonstrate the overall composition. Porosity: This form is composed by hexagon prisms. If one look at it from the bottom, it is clear that the top of the prisms almost extends beyond the edge of the exterior volume. I did not make it cut though due to the concern of the stability of the model. Permeability: The prims are extruded toward one corner, which creates an exciting interior volume due to the sharp long pyramids extending from the celling and around. The interior volume is devided by the rock form.

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Week Six Task 01

Lofts

1.1

1.2

Key

1.4

{150,150,150}

{0,0,0}

{150,100,150}

{100,150,150}

{100,0,150}

{150,0,150}

{0,100,150}

{75,150,0}

{150,25,0}

Grid Points

{50,0,150}

{0,25,150}

{125,150,0}

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

{0,150,150}

{0,100,150}

{0,75,0}

1.3 {75,150,150}

{150,50,150}

{25,150,150}

{150,50,0}

{150,25,0} {0,100,0}

{0,50,0}

{0,50,0}

{Index Selection}

Paneling Grid & Attractor Point

2.1

{25,150,150}

{0,25,0}

{0,25,0}

{Index Selection}

{Index Selection}

{Index Selection}

2.2

2.3

2.4

{150,50,150}

{62.5,82.5,40} {0,90,90}

{50,25,75}

{-2.5, -87.5, -40}

Paneling

{Attractor Point Location}

{Attractor Point Location}

{Attractor Point Location}

{Index Selection}

3.1

3.2

3.3

3.4

+

->

{Hexagon Cell from Wiverbird with different parameters}

Task 01 Matrix I chose 3.4 as I intend to create two contrasting surfaces, which means one of them is stiff and the other one is smooth. Hence, I experimented with both 2D and 3D panels by using various forms, such as pyramids. Moreover, I have experimented with changing the t parameter in grasshopper to create completely different patterns. I also exploer different commands such as Morph 2D mean, which creates a gradual change from one shape to another.

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Week Six Task 02

Grid Manipulation

1.1

1.2

1.3

Key

1.4

{0,0,0} {0,0,150}

{150,150,150}

Grid Points

{150,150,150} {100,150,150}

{150,150,150}

{ 50,150,150} {0,150,150} {150,150,150}

{150,150,0}

Cylindersâ€™ Distribution

{Point Attractor}

{multiple point attractors}

{Linear Point attractors}

{curve attractor}

2.1

2.2

2.3

2.4

{50,100,150}

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

{-35,-110,233}

{ 50,150,150} {0,150,150} {50,150,150}

Transformation

{Attractor Point Location}

{Curve Attractors}

{Random Attractor}

{Volume Gravitational centres}

3.1

3.2

3.3

3.4

Task 02 Matrix I chose to develop 3.3. It creates distinct interior and exterior volume through the extruded prisms toward one point. It has enough variation to develop an interesting section.

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Week Six

+

{Hexagon Cell from Wiverbird with different parameters}

Final Isometric Views

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->

Appendix

Process

Morph 2D mean

Experimenting with t parameters

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Appendix Process

Sticking individual 3D panels Put the waffle structure together

Put the panels into surface

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Appendix

Process

Puting the skin and waffle together. It is quite easy for 2D panel, however, I encountered difficulties when putting 3D panels to the skin. Due to the pulling force in between each panel, there are pores. Thus panels are streched to have bigger base area, which makes it difficult to match the edges of the waffle. Perhaps the possible solution is to stick individual panels onto waffle.

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