DIGITAL DESIGN + FABRICATION SM1, 2016 M1 JOURNAL - YOUR PROJECT TITLE Shengjie Wu
813055 Siavash Malek_GROUP 3
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149MM
Measured Drawings
315MM FOLDING WOOD FENCE PLAN VIEW
FOLDING WOOD FENCE SECTION
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SECTION 1: 2
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1: 2
4MM
FOLDING WOOD FENCE ELEVATION 1: 2
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260MM 1460MM
FOLDING WOOD FENCE MAX. STRETCHING OUT PLAN VIEW 1: 5
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Wood Panels 18MM
304MM
ONE PANEL OF THE FOLDING WOOD FENCE PLAN VIEW
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1: 2
Steel Joint
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When the fence is closed, the shape is relatively regular. Therefore, it is quite easy to measure it by simply using the measuring tap. For the length of the long side of the fence, I measure it from tip to tip of the panel. For the thickness of each panel, I measure it by using a ruler which is more convenient for measuring such a short length.
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The maximum stretching out form of the fence is a bit hard to measure, for the irregular shape, so I put it on the table, making sure the two ends of the fence align to the table edge, and then I measured the length by using the measuring tap. To measure the height of this arch-like shape, I measured it from the middle of the arch to the edge of the table.
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Analysis
This object is a wood folding fence for hanging vines. The main structure system is folding and paneling. This structure gives the object more flexibility which means the object can be moved easily and stretched into multiple length. Also, Each wood panel is connected by pin joints. This kind of joint is not rigid but it can allow the each piece of the object swing around it.
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Each panel is connected with three other wood panels. When the object is stretched out, the horizontal length becomes shorter. The maximum stretching out form of the object is not a straight line. This might because of the thickness of the wood panels which effects the shape of the fence when it is being stretched out. In geometry, the movement of the wood panels can be viewed as the sliding of the two sides of a parallelogram. Although parallelogram is not as fixed as triangle, it is more dynamic and it can gives more options for people to choose the size or shape they want.
Wood Panels
Steel Joint
The main material of the object is wood. Wood is a suitable material for planting and gardening, because it gives a feeling of nature. However, wood might rot after being used for a lone time in a moist environment. The material used for the joints is steel. Steel is relatively durable and solid material, compared to wood. It has high plasticity, so it can be shaped into various forms. However, steel is also easy to become rusty under moist environment.
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Digital Model
Plan View
Perspective View
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Joint Transparent View
Joint Detail
Joint Detail Connection Detail
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First I used sweep 1, torus and cylinder commands to create the basic elements of the joint, and then I used boolean difference to get rid of the unwanted parts. Finally, I used control point command to adjust the overall shape.
The panel was made from curves to surface and surface to solid. Then I used boolean difference command to make the joint holes on the panels.
Moving the joint and the panel to the correct posotion.
At last, using Array command to complete the whole fence.
Difficulties:
Difficult to find the joint position on the panel. Sometimes struggling with the boolean split command, for which after the command, the objects need to be exploded to get rid of the unwanted parts.
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Moving the joint and the panel to the correct posotion.
Sketch Model
One of the quality that I like about the paneling and folding system is the flexibility. Each part of the whole paneling system can be moved and positioned into certain places. For the above sketch mode, I simply used a piece of paper and cut some stripes on it, and then I could fold it into many solids , such as a corridor and a latern. The stripes can be viewed as the panel pieces of the fence, these stripes can deformed the whole model, when they are under tensile and compressed forces.
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However, the paneling and folding can also be made for a more rigid structure by changing the pin joint into a more rigid join. Thus, I just simply use glue to connect the wood sticks to create a such a curvy canopy. This canopy cannot be deformed unless the forces exceed the maximum stress capability.
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Sketch Design #1 Elasticity, flexibility, adjustable
How does this respond to your personal space? The garment is separate into two same stretchable parts. In normal form, the garment looks like a tassel dress. When people feel their personal spaces being invaded, they can pull the string at back, and then the dress will expand into a lantern shape to keep the invaders away. The distance to keep the personal spaces is adjustable.
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Sketch Design #2 Sphere, envelopment, privacy, defensive
Prototypes of the Hoberman Sphere
How does this respond to your personal space? This idea is based on the prototype of Hoberman Sphere. Unlike the previous idea, this structure can shrink inward, but it still has spikes around the head when it is closed. Therefore, for the person who wears it, it will always provide a certain personal space to prevent external invasion. When the person needs more individual spaces, the sphere can expand larger to provide more spaces.
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Joint Details
Sketch Design #3 Simplicity, engaging, protective, shelter
Origami Closeup Detail
How does this respond to your personal space? This idea is typically based on origami. The material is simply a piece of paper. The paper is folded into a tessellation pattern with the triangular prisms protruding. As paper is quite flexible for folding, the ultimate origami can be shaped into a cambered surface. Also, different from the other ideas, this structure engages the wearer to other people when the origami is stretched out. The whole structure will become a big plain plane to enclose a much larger space. Origami Plan
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Prototypes
Prototypes of the Hoberman Sphere
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http://www.piper3dp.com/3d-printing/from-the-lab-auxetic-smart-structures/