McColl Brett 832138 Module 1 Ideation

DIGITAL DESIGN + FABRICATION SM1, 2017 M1 JOURNAL - Party Whistle Brett McColl

832138 Josh Russo - Group 1

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Measured Drawings

62.5 mm

20 mm

TOP

20mm

40mm

90 mm

26 mm

FRONT

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RIGHT

Top Left: Measured entire object with ruler. Also expanded foil tube to measure

Top Right: Measured only plastic section of whistle, without any other parts attached

Bottom Left: Using a hacksaw, opened up the plastic whistle to measure interior components

Bottom Right: Using a ruler and visual analysis, determined size and position of internal components

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Analysis Components:

Top: Plastic Whistle

Made of solid plastic, with small

parts inside which vibrate when

blown to make a loud noise

Middle: Tube

Made of reflective foil. This works

in conjunction with the coiled

plastic to unroll when air is blown

through the whistle.

Bottom: Coiled Plastic

Made of hard, but flexible

plastic. This is glued to the foil to

create the tube of the whistle. It

also remains coiled unless

pressure is applied to it

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OPERATION Blowing into the plastic whistle creates air pressure inside the foil. The foil is then uncoiled, and air escapes out the end. Whilst this occurs, a small tab at the front of the whistle vibrates, creating the loud sound.

20mm

40mm

290 mm

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Digital Model

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First Row Left: Outline of the end of plastic whistle.

About to initiate 2-Rail Sweep command First Row Right: Combined two poly-surfaces to

create the first interior component

of the plastic whistle

Second Row Left: Inserted large component of the

whistle. Using Boolean commands

to remove unwanted excess Second Row Right: All interior components of

whistle in place. Used mirror

command for side pieces.

Third Row Left: Created a spiral to act as the coiled foil Third Row Right: Used the Two Rail Sweep command

to create the solid coil.

Fourth Row: Moved coil into position. About to use

Two Rail Sweep command to join

the coil and the whistle to finish the model

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Sketch Model This sketch model is based around the coiled plastic rolls. They are stretched between two whistle segments, yet are trying to coil back into their original shape, creating an arrangement of disarray.

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First Row Left: There were many issues when working

with these materials. Firstly, the glue

available was not sufficient to bond plastic well, so large amounts had to be used.

First Row Right: The thought process was that

wooden matchsticks would force

the plastic coil to straighten. While

this did work, the plastic would still

coil at the ends, twisting into undesirable shapes.

Second Row Left: The plastic coils did not like being

glued together, and required a lot

of glue and time to stay together.

Second Row Middle: Once the coils were joined,

connecting them to the plastic

whistle was a challenge. Again,

copious amounts of glue was

required, which damaged

the visual appeal of the model.

Second Row Right: Same situation applied, where

copious amounts of glue to bond the model was needed.

Third Row Left: Again, the amount of glue required

to connect the coils to the whistle

damaged the model. Foil was used

to straighten the members out,

and provide an overall shape for the model.

Third Row Right: However, an issue with the foil arose.

The foil would not work with glue at

all. To combat this, clear tape was

used. Although the model is

complete, it does not look as good as envisioned.

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Sketch Design #1 Space by Exclusion

Eyeholes can be opened or closed to allow user to see or block sense of sight Cloth stretched over thin, yet strong skeleton

Long nose can block sense of smell, as well as allow user to peer at hands

Sense of hearing can be blocked by headphones integrated into design

Sense of touch negated by large cloth draped over body

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How does this respond to your personal space?

This concept is based upon the bird-masks worn by doctors to combat the black death. By blocking all five senses, the user would not know whether or not thier personal space is being invaded, and they remain safe inside their own world.

Sketch Design #2 Space by Defense When fully expanded, cloth is stretched tightly between members. Material would be very stiff, and would require Cloth wrapped over strong members

considerable force to break or move

When fully expanded, cloth is raised behind the users head, in order to protect their blind side from unwanted contact

Whilst in storage, cloth and members fold inwards to

How does this respond to your personal space?

protect the mechanism

Unfolding mechanism pushes outwards, meaning that

Based upon the frills of a lizard, this design enables users to create their own personal space. The “frills” can be retracted close to the body for storage. They can easily expand outwards to push people away from the user, and creates a large space where people cannot reach the user.

anyone in the radius of the “frills” will be pushed out

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Sketch Design #3 Space by Aggression

Blade can be retracted when not in use. A protective cover will need to be used to ensure the user doesn’t accedinetly hurt themselves or others

Sharp blade is attached to underside of arms. This is so the user can insticntively hurt an attacker by raising thier arms to thier head whilst protecting themselves.

Strong, tear-proof clothed underneath strong skeleton

The skeleton is hinged at the elbow, allowing the user to move thier arms freely. The design only covers the arms, so any other movements are unrestricted by this design

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How does this respond to your personal space?

The idea for this concept came from medieval suits of armor. This design is not meant to defend the user against general personal space intrusions, but rather when the users personal space is intruded by aggression. Such an intrusion could be if the user was being mugged or assaulted. As such, the design focuses on protection of the arms, with a blade mechanism attached to protect the user, which can be retracted. The design also allows the user to function normally.

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Appendix Left: Lines and Polylines Right: Curves

Left: Creation of Planar Surfaces Right: Trim and Planar Surfaces

Left and Right: Revolve

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Left and Right: Rail Revolve

Left: One Rail Sweep Right: One Rail Sweep with Closed Curves

Left: Two Rail Sweep Right: Two Rail Sweep and Boolean Commands

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