Digital Design - Module 02 Semester 1, 2018 Alisa Poon

(917562) Joel Collins Studio 19

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 (i.e. CNC milling): Removes a specific volume of material from solids by ‘electrically-, chemically- and mechanically- reductive’ processes. Additive fabrication (i.e. 3D printing): Joins materials to create objects directly from 3D model data in the method of ‘layer-by-layer’. The solid digital model is thus created by pile of two-dimensional layers. Two-dimensional fabrication (i.e. laser cut) Sheet materials are cut with a moving two-axis motion cutting head. There are different cutting technologies such as laser-beam, waterjet and plasma-arc. Computer Numeric Controlled fabrication with parametric modelling is quite in potential. The CNC instructions and programs control the motion and operation parameters of cutting head for CNC cutting or the milling machine for CNC milling. With the aid of CNC (technology), accuracy of the model is highly increased.

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Week Three

Surface Creation

For scripting the surface, a bounding box is made with grid. Surface can be varied and changed along by moving the 4 points along axis with the slider. Surface can be twisted, flatted, or even curved by constructing the surface with three lines. Different surfaces were explored and point grid were add with a point attractor or curve attractor. Grid points will be concentrate towards the point attractor, and so does the curve attractor.

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Week Four Panels & Waffle

For the ruled surface, pyramid panels with perforations (triangular windows) were built.Panels are smaller at the middle and increase in size towards the two sides horizontally.Panels are bigger at the bottom and increase in size towards the top of the volume.

The waffle structure is quite sparse due to the distorted curved surface. Evenso, the structure can be stand on flat surface and it is quite steady.

For the curved surface, due to it’s curvness, panel cannot be made in to a true-curve. More grid points are added to create a similar curve to the surface. 2D triangular shapes are used due to complicated shapes can not be bake as planar with ‘Morph2D’ in GH. Thus the ‘Morph2D’ was ‘Explode’, ‘List’ to become a ‘4 Point Surface’ for using only triangular panels.

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Week Four

Laser Cutting

Waffle is laser cutted in pieces with 1mm mount board. Tape is applied for locating the cut out part, but it might be too strong that it may tear off the board. Etch should be used on some sides to prevent using tape.

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Week Five

The scripting of boolean form is basically by building a box and manipulating point grids and form a total of 27 of boxes. PtAttractor and CrvAttractor are used for making variation of point grids. Then different geometry like spheres, tetrahedron and cubes are built along with scaling the attractor point for diversity of shapes. The XY plane can also be rotate by destructing the original XY plane and manipulate it again to rotate the shapes. Lastly, â€˜BooleanDifferenceâ€™ is used to cut out the negative spaces from the cube.

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Week Five

Isometric

The isometric is a booleaned volume with a trapezoid base. The negative spaces are formed by different cubes. It is chosen to develope and 3D print due to its simplicity and tidiness for the overall shape while having some interesting spaces with the rotated cube negative spaces. Porosity and permeability: For the left isometric: The booleaned geometry can be visible as a vertical rectangular form. A space on top left with a two rectagular perforations allows light and ventilation. It also act as a balcony and thershold. Levels of rotated cube negative spaces defines three storeys. There are threshold and entrance of the geometry. For the right isometric: Retangular perforations allows light entry. Threshold is created with the rectangular openings which leads into the interior spaces, the negative spaces. Triangular poles act as columns to support the above structure. Where the intersecting cube interacts with the surface envelope creates a semi-open space.

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Week Six Task 01

Lofts

1.1

1.2 {75,0,150}

1.3

1.4

{75,-25,150} {75,25,150} {-50,-75,150}

{75,75,150}

{0,0,0}

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

{75,75,150}

{25,0,150}

Key

{75,-75,150)

{75,0,150} {75,45,150}

{-75,-75,150}

Grid Points

{25,75,150}

{-25,-75,150}

{-25,75,150} {-37.5,75,150}

{-75,-25,0}

{--75,75,150}

{0,50,75}

{75,-75,0}

{75,50,0}

{75,50,0}

{75,-25,0}

{75,75,0}

{-75,-75,0}

{75,50,0} {-75,-25,0} {-75,0,0}

{-75,75,0} {Index Selection}

{Index Selection}

{-75,75,0}

{-75,25,0}

{-75,45,0}

{-75,75,0}

{Index Selection}

{Index Selection} {15,-456,25}

Paneling Grid & Attractor Point

2.1

2.2

2.3

2.4 {32,-362,25}

{109,36,117}

{160,39,0}

{-21,-42,93}

{87,126,118}

{17,039,0}

{-20,-185,25}

{-123,88,116}

Paneling

{Point Attractor Location}

{Point Attractor Location}

{Curve Attractor Location}

{Point attractor + Curve attractor Location}

3.1

3.2

3.3

3.4

Task 01 Matrix In task 01, difference surfaces are built with 2 lines and even 3 lines to make a curved surface. Attractor points and curved are used to control the points grid on the surface to make variations. Different 2D or 3D shapes are applied on the surface. Matrix 1.4, 2.4, 3.1 and 3.4 were chosen for further development. Regarding to the surface and panel grid, a combination of ruled surface & curved surface and point attractor & curve attractor are chosen respectively as a diverse exploration are shown. Meanwhile for the panels, since 3.2 and 3.3 are too complicated and hard to fabricate, 3.1 and 3.4 were choose to development.

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Week Six Task 02

Grid Manioulation

1.1

1.2

{65,-48,0}

1.3

Key

1.4

{0,0,0}

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

{65,-48,0} {65,-48,0}

{65,-48,0} {65,-48,0}

{1 Point Attractors}

{2 Point Attractors}

{Curve Attractor}

{65,-48,0}

{-26,218,-31}

{-211,209,-31}

{-9,25,-31} {2 Point Attractors + 1 Curve Attractor}

{-278,185,-4} {-379,3,-14}

Shape Variation

2.1

{Tetrahedron}

XY Panel Rotation

3.1

{0°}

2.2

{Octahedron}

3.2

{Rotate in the multiples of 5.3°}

2.3

{Dodecahedron}

3.3

{Rotate in the multiples of 21.5°}

2.4

{Cube}

3.4

{Rotate in the multiples of 22.4°}

Task 02 Matrix In task 02, grid is manipulated with different attractors. Varies shapes are used to ‘Boolean Difference’ with a cube. The XY plane are rotated to form interesting shapes and spaces. For the grid manipulation, 1.4 is chose as a diverse exploration are shown. Curve attractor and 2 point attractors are used for producing the point grids. For the shapes, cubes were chosen due to its property of simplicity. The others are too complicated that it is impossible to 3D print. Lastly 3.4 is picked for the XY plane rotation, as the negative spaces form is the most interesting without being too messy.

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Paneling

562

3.1

3.2

3.3

3.4

Week Six

Final Isometric Views Design Matrix 1:5

Solid panels with triangular windows create a semi-boundary between exterior and interior. Light are refracted through the windows and varied shadows are produced.

Curved surface enlarge the interior volume visually instead of a rigid ruled surface.

Panels are smaller at the midder and increase in size towards the two sides horizontally. Trianglar panels reflects light from the volume. Radiate sun waves to keep interior cool.

Panels are bigger at the bottom and increase in size towards the top of the volume.

A hollow waffle structure creates interior volume.

Exploded Axonometric 1:1 0

20

60mm

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tion

XY Panel Rotation

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3.1

3.2

{Tetrahedron}

{Octahedron}

{Tetrahedron}

3.4

{Dodecahedron}

{Octahedron}

3.1

{Cube}

{Dodecahedron}

3.2 XY Panel Rotation

XY Panel Rotation

3.1 {0°}

3.3

{Cube}

3.3 3.2

3.4 3.3

{Rotate in the multiples of 5.3°}

3.4

{Rotate in the multiples of 21.5°}

{Rotate in the multiples of 22.4°}

Design Matrix 1:5

{0°}

{Rotate in the multiples of 5.3°}

{0°}

{Rotate in the multiples of 21.5°}

{Rotate in the multiples of 5.3°}

{Rotate in the multiples of 22.4°}

{Rotate in the multiples of 21.5°}

{Rotate in the multiples of 22.4°}

The booleaned geometry can be visible as a vertical rectagular form.

Threshold is created with the rectagular openings. Leads into the interior spaces, the negative spaces.

A space with a two rectagular perforations allows light and ventalitaion. It also act as a balcony and thershold.

Where the intersecting cube interacts with the surface envelope creates a semi-open space.

Levels of rotated cube negative spaces defines three storeys.

Threshold and entrance of the geometry.

Trigular poles act as columns to support the above structure. Perforations allows light entry.

Axonometric 1:1 Solid boolean placed horizontally.

Axonometric 1:1 Solid boolean placed vertically. 0

20

60mm

0

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20

60mm

Model

Panel and waffle paper modle.

Boolean form 3D printing.

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Appendix Process

Build the basic GH script and start to explore.

Exploring surfaces by sliding the number slider.

Exploring surfaces,

Forming curved surfaces and attractor points with 3 lines and curve attractor respectively.

‘Mesh to Nurb’ the 3D panels in order to unroll. For the 2D panels, simple straight line was used before as there are too many limitations in fabricating a curved

The design was changed to triangular panels as the diamonds can not be bake as planar with ‘Morph2D’ in GH. Thus the ‘Morph2D’ was ‘Explode’, ‘List’ to become a ‘4 Point Surface’

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Appendix

Process

Build waffle with script.

Bake the panels and waffle.

Unroll the panels in order.

Panels laser cut. Mark number in order to be easier to regonize.

Waffle laser cut.

Making images for the matrix :

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Make 2D and select out the outer curve by command â€˜Curve Booleanâ€™ and the attractors in order to be easier to change

Appendix Process

Build the basic script with sphere.

Play along with insane shapes but it cannot be â€˜Boolean Differenceâ€™ after baked.

Try cone shapes and rotate the XY planes to discover a more interesting shapes.

Finalize my design with cube shapes as the others cannot be fabricate in reality.

Cut the whole boolean cube with clipping planes.

Finalize the shape and send to 3D printing.

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Appendix

Process

Fold along edges and stick the tabs with glue. Use forcep and mountboard tape as an aid.

Use clip to fix and wait until glue dry.

Do the same for the 2D panel.

Build the waffle.

Whole piece of 3D panel.

Stick the 2 panels onto the waffle with hot glue gun or UHU.

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