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DIGITAL DESIGN + FABRICATION SM1, 2015 M1 JOURNAL - Folding Chair

Jeth Leong 555136

Rosemary Gunzberg

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Measured Drawings

Elevation View Sketch

Plan View Sketch

Plan View of Chair Skin

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How measurements were taken

Elevation View Closed Chair Plan View Closed Chair Elevation View Open Chair

Plan View Open Chair

To complete the measured drawings, a tape ruler was used to take down important dimensions of the foldable outdoor chair. We were unable to use tradi-tional methods such as photocopy or taking photos due to the large dimensions of the object. Some important dimensions of the object were the footprint (length and width at the base), as well as the height from the ground to the seat and ground to the back rest. These dimensions were taken with the seat in its open and folded position. Also important were the dimensions of the fabric subsystem of the seat, which consisted of two armrests and the main body. Photos were also taken in semi plan and elevation view to get an idea of how the object would translate onto paper. In order to acertain certain angles on the metal poles, especially areas where they were bent (at the arm rests) the photos were printed out and angles measured with a protractor. From this information we were able to complete the drawing.

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Analysis

Translation of connector along vertical bar (sup-ports back rest)

Rotation at joints of cross connection between bars

Rotation of bars at joint with connector

Analysis of movement at a plastic connector of the chair

There are three movements involved in the “bone” of the chair that facilitate the opening and folding of the chair. This set of particular connector and metal bars works in unison with other connectors and metal bars . The 3 joints in the photo facilitate rota-tion. the plastic connector and vertical bar facilitate translational motion.

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Digital Model

Isometric View - Model of Chair

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Elevation View - Model of Chair

Plan View - Model of Chair

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Sketch Model

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Redesigned Object Plan View

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Redesigned Object Elevation View

Materials used: 8 Columbia Cadet HB Pencils, 17 J. Burrows No. 14 Rubber Bands, Green Poster Paper

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Redesigned Object Isometric View

The chair iscomposed of a skin and bone sys-tem, a structure made up of connectors, joints, metal poles, and fabric. my redesigned object is based on a similar premise. The pencils acted as the “bone” of the object giving the “skin” of the object, or the poster paper structure by which it could be attached to. The rubber bands act in a similar manner to the connectors and joints on the chair, joining pencils together while allow-ing some rotational motion while the object was being constructed. The rubber bands also have to purpose of holding the poster paper in place. The criss-cross system of the chair was mimicked as it was found to give the chair and my object self supporting stability.

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One module of the second skin consists of a scissor mechanism that extends or retracts a plexiglass panel. These modules are attached circularly around the body and work to increase or decrease personal space according to liking. The sharp defined edges of the second skin act as a visual warning to maintain distance.

How does this respond to your personal space?

Extension/Panels/Controllable

Sketch Design #1

Extended

Retracted

Idea behind single panel

Plexiglass panel

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Second skin starts as a hat. When the person does not require a barrier to protect their personal space, this mode of usage is most suitable. When unhooked drapes over body to create personal space in an ef-ficient manner. The combination of translucent fibers and plastic bands provide structure to the second skin.

How does this respond to your personal space?

Circular/Multipurpose/Retractable

Sketch Design #2

Closed-Front View

Closed-Top View

Hooks to fasten second skin

Open-Front View

Plastic Band

Clear Fiber

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Sketch Design #3

Adjustable/Tension/Floating

How does this respond to your personal space?

Piston like modules with three adjustable levels of support and provide tension to a clear synthetic layer. Different levels of support provide greater tension to the layer and also greater space. The increasing stretch marks across the layer according will dissuade strangers from coming closer.

Single Module of Second SkinSide View of Second Skin

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Appendix

Pipe Command 1 Rail Sweep

2 Rail Sweep Revolve/Rail Revolve

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Loft

Extrude Curves

Surface from Planar Curves