KeLin Graduate Portfolio 2020

MA Portfolio

Sep. 2018 - Jun. 2020

the Intersection between Physical and Digital Ke Lin +886938048885 linklin830912@gmail.com keli1848@edu.kadk.dk

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thesis project

Branch Out

-- a Construction Method for Building in the Remote with Raw Wood Material

Master's of Architecture thesis project individual work tutor / Paul Nicholas

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the Research

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the Design

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the Material / material design, programmable material, material simulation the Components / 3d scanning, point-cloud data management, model meshing the System / generative reciprocal frame structure tool

the Hunting Shelter in Pinetree Forest the Lounge in the Riverside Forest the Platform in the Mangrove Forest the Seasonal Sheep Shed and Tree Nursery in the Icelandic Forest

other projects

Programmable Membrane

-- the Research in Textiles and Polymers

Master's of Architecture 2nd semeter project individual work tutor / Paul Nicholas, Tore Banke

a Look through into 3D Printing Materials

Master's of Architecture 3rd semeter project group works Clay printing material / Wasp printer Gelatin-based material / UR robot Cellulose-based material / UR robot

Light, Textile, Soft Architecture

-- knitting with codes

Master's of Architecture 1st semeter project group work Knitting machine, ABB robot

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a Construction Method

for Building in the Remote with Raw Wood Material

Branch out

MA graduation individual project tutor : Paul Nicholas

The one-year-project distributed two-third of the time for the research and one-third for the design. The proposal was a generator for a reciprocal frame structure that simplifies the workflow for building in the remote using raw wood material by using new tools. In the meanwhile, the design utilized the tools, made in the research, into the local context, as a means to demonstrate the feasibility of the proposal.

the Research

The research utilized both physical tools (3D scanning, AR assist assembly) and digital tools (Python, Numpy, Grasshopper) in the project.

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T h e p ro j e c t l o o k e d i n t o the aspects of the material, the components, and the system, representing the assumed challenges on site.

The material, how the material could adapt and hold on to irregular objects, developed into designed joints.

The components, how the infor mation from the 3D scanned forest gathered, categorized by featured geometry and related to architectural functions.

The system, how parameters w e re i n t e r pre ted b y the generator from the research proposal, and developed into localized designs. pre-fab

material

components

system

scanning

joint design material design Kangaroo simulation physical modelling

assembling

computing

connection experiment Kangaroo simulation physical modelling

pointcloud simplifiy Faro 3D scanning Python / NumPy Grasshopper

branch matching Python / NumPy Grasshopper

reciprocal frame structure system Kangaroo simulation Grasshopper

components orientation Grasshopper Fologram (AR)

localized design

Kangaroo simulation Grasshopper Adobe Photoshop / Illustrator

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component_a r = 5.00 - 7.00 cm L = 75.00 - 250.00 cm

hand pumping mixture into the joint

joint wood glue

sawdust

Digital simulations of material behavior / scripted by Kangaroo

component_b r = 10.00 - 15.00 cm L = 75.00 - 250.00 cm

the Material

After the digital simulation synchronized with the physical results from experiments, the process can be furthered much frequently digitally.

Physical experiments with evaluation from 3d scanning (Faro software -- Scene LT)

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1.

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4.

1. simplifying data point-cloud > polyline 2. extract components 3. cloud cleaning 4. meshing 5. result

The component looked into the field of data management of point-cloud. Since grasshopper didn't have enough capacity to run heavily loaded data, the project integrated Pycharm as the running engine and grasshopper as the visualizing tool.

The point-cloud was, at first, simplified into polylines with an algorithm based on Mean-Shift Clustering Algorithm.

They were cleaned and modeled into meshes by Marching-Cubes Algorithm.

5.

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optimised unit

3d scanned branches extracted branch

simplified

shear force

point cloud moment

The system was a dictionary for sorting components, with 3d scanned branches, with the right curvature to t h e d e s i g n e d s urf ac e . So m e species of t rees h a d g e o m e t r i c a l l y d i s t i n c t b r a n c h e s . T h e y w e re interpreted into particular functional parts of the design, specified and sorted into a sub-category.

The system assisted the planning of on-site assembly by calculating the required amount, segment, location of the components for the design.

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the Design

T h e e x a m p l e s d e m o n s t r a t e d h o w t h e p ro p o s a l merged into the specific site, condition, and a rc h i t e c t u r a l p ro g r a m , t h ro u g h t h e r a w n e s s o f material, the patter n of the reciprocal frame structure, and the geometry of the architecture.

The tools for the design were scripted based on Python and Grasshopper, developed in the research stage readily for test-outs.

gif supported

interlace

site / pine tree forest tree geometry / linear straight branches, weaved twigs architectural program / hunting shelter, multi-use This example showed the idea of a simple shelter that could also be expanded into multi-living units.

multi-unit shelter / the patterns were designed to interlace without passing redundant force to the other units.

single-unit shelter

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tree type / segments /

pre-fabricate material / cladding material /

pine tree evergreen branch ����mm - ���� mm trunk ����mm-�����mm joint_��, joint ��, cable weaving twigs

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site / riverside forest tree geometry / bend-toward-river tree architectural program / lounge

Trees, for the project, were either site or components. The example maximized the relationship between the curvature of branches and the human body since the information could be much more precise with the help of 3D scanning.

tree type / segments / pre-fabricate material / cladding material /

oak, willow, maple... ���mm - ���� mm segments joint_��, joint ��, cable thatch

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site / mangrove forest tree geometry / tree forks, wide root architectural program / platform for fishery

Tree-forks were feature both geometrically and structurally in mangrove trees. The idea was to sort out tree-forks from the data of scanned trees and made it into a subdictionary for the second-layer-supports of the design.

tree type / segments /

pre-fabricate material / cladding material /

tree type / segments /

pre-fabricate material / cladding material /

mangrove tree branch ���mm - ���� mm fork ����mm-����mm tree root ����mm-�����mm joint_��, joint ��, cable drift material fishnet

mangrove tree branch ���mm - ���� mm fork ����mm-����mm tree root ����mm-�����mm joint_��, joint ��, cable drift material fishnet

�.��m - �.��m

�.��m - �.��m

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site / Icelandic forest tree geometry /birch trees (artificial) architectural program / sheep shed, tree nursery

The exterior of the design w e n t t h ro u g h s t r u c t u r a l seasonal changes. Doublelayered supporting withstood the weight of the thatch roof on top of the sheep shed during winter. And in spring, the design was reduced into a single-layeredframework transforming into the nursery for young trees.

The component dictionary in this example, therefore, dispatched branches into categories for different layers by different strength-toweight ratio.

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�st phase reforestation

�nd phase reforestation

The parameters of the reciprocal frame structure were meant to be flexible enough to adapt along the edge of the barren forest while could expand or be taken down when the time came.

thatch roof for warmth

wood framework remain

Winter, Sheep Shed

Spring, Tree Nursery

build on barren land soil fertilized by sheep

young trees planted

The architectural program integrated sheep grazing with the tree growing program, making architecture as a link of two industry forming a sustainable cycle.

add-on 2nd layer double layer sheep shed time / winter structure material / branches surfacing material / thatch

Years later, trees grown

1st layer single layered tree nursey time / spring structure material / branches surfacing material / fine mesh(optional)

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The membrane was layered by textiles of different elasticity and laminated by different polymers.

The textiles with less elasticity became the factor for the varied geometry.

Programmable Membrane -- the Research in Textiles and Polymers

I n s p i re d b y F R P m a t e r i a l s , t h e re s e a rc h l o o k e d i n t o d i ff e re n t t e x t i l e a n d p o l y m e r c o m b i n a t i o n .

B y c h a n g i n g t h e p ro p o r t i o n o f t h e p o l y m e r o r the cutting patter ns of the textile. The designed membrane could geometrically be varified by inflation.

This research was the pre-investigation of the thesis project, mentioned in the former chapter. It provided the material library for the joint design and built up simulation tools for frequent testings.

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a Look through into 3D Printing Materials tools / Wasp printer (clay printing) UR Robot (gelatin printing) UR Robot (cellulose printing) CNC milling

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Through my master, I had experienced in additive manufacturing from the 3 materialbased research projects. The first was 3D printed clay with the idea of how undulating curves and printing speed can strengthen the overall geometry.

software / Grasshopper, Python

Grasshopper scripted gcode

The second was a gelatinbased printing material that stood as both building blocks and food supply for the glowing bacteria colony incubated inside the prints, designed according to the behavior and response from the bacteria.

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The third project was to construct a new evaluation methodology for assessing the performance of a new recipe, cellulosebased-material for printing and molding.

The project integrated 3d scanning into the workflow for assessing the geometry change from the print through time and pressure.

printing

clay printing with Wasp printer

molding

scanning

gelatine-based material printing with Arduino extruder

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Light, Textile, Soft Architecture

The project looked into the quality of space by casting light onto designed knits. The patterns of knits were made from codes according to the sun path simulation by the robot arm. The project was integration between, the making of knits, the designing of patterns, and the simulation of the environment. In the end, it developed into an inform loop for generative knitting patterns of the light at different times of the day.

tools / Knitting machine, laser cutter, ABB robot

software/ Grasshopper, Ladybug, Python, Knitting software

photography evaluation

pattern design

laser cut punch card

knitting

robot simulation