Design Portfol io — Rami Hamzey 1www.ramihamzey.me
RamiHamzey
Ankle Tracking DeviceCollapsible SkateboardDisc PackagingSmart Gasket
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Design Portfol io — Rami Hamzey 2www.ramihamzey.me
Ankle Tracking DeviceAssessment of Fine Motor Control at the Ankle
ObjeCTiveDesign an affordable, portable system
that can be used to quantify outcomes
of a lower limb mirror therapy program
for people with stroke.
Design Portfolio — Rami Hamzey 2www.ramihamzey.me
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Design Portfol io — Rami Hamzey 3www.ramihamzey.me
Adjustable Straps
BasePotentiometer
HingedAnkle Brace
Adjustable Straps
BasePotentiometer
Ankle Brace / AFO
Computer Monitor
User InputSine Wave Target
Arduino
1. Portable and easy to use – Task will be directed at remote sites by staff with varying amounts of familiarity with the protocol. 2. Affordable – Pilot study 3. Adjustable – Multiple participants, both legs 4. Precise - Ability to sense small movements in a population that may have as little as 5 degrees active range of motion in the ankle.
CONCePT
RequiReMeNTS
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Design Portfol io — Rami Hamzey 4www.ramihamzey.me
HARDwARe
Adjustable...
...height
...angle
...size(velcro straps)
Leg Stand
SOFTwARe
60 70 80 90 100 110−40
−30
−20
−10
0
10
20
30
Deg
rees
from
90°
ank
le p
ositi
on (+
= D
F, −
= P
F)
Time (s)
Pretreatment Assessment 1 − Unaffected Limb − Tracking
Accuracy Index: 47.52 Target User R.O.M.
MATLAbArduino Processing
Goniometer
Linear taper potentiometer
Modified AFO
Ankle Tracking boot
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Design Portfol io — Rami Hamzey 5www.ramihamzey.me
iMPLeMeNTATiON
NexT STePS1. Reduce AFO hinge resistance: Participants with
significant ankle weakness are unable to move the boot.2. incorporate other forms of optional feedback (e.g.
real-time score, color feedback)3. improve sturdiness of leg stand. Sturdier materials.
1. Portable and easy to use – System can be run from a laptop. Three simple components: boot, Arduino, leg stand. Simple calibration process, two keystrokes.
2. Affordable – off-the-shelf hardware, Arduino, and re-purposed ankle-foot orthosis.
3. Adjustable – removal of toe box allows device to be used on either leg. velcro straps allow toes to be strapped down firmly. Leg stand is fully adjustable (height, angle, velcro straps for different leg sizes).
4. Precise – Data collection at 1000 Hz. Arduino ADC resolution of 10 bits can detect angular movements of less than 1 degree.
ASSeSSMeNT(video)
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Design Portfol io — Rami Hamzey 6www.ramihamzey.me Design Portfolio — Rami Hamzey
Collapsible SkateboardPhysics-themed board That Fits in a backpack
ObjeCTiveDesign a skateboard that will collapse and
fit into a standard backpack.
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Design Portfol io — Rami Hamzey 7www.ramihamzey.me
CONCePTS
Thumb Screws
Slide BoltsConcealed Screw Slide Bolts
Labeled Dimensions
A - 6”B - 7/8”
C - 2 1/2”31 1/2”
8 1/2”
Bottom ViewTop View
McMaster-Carr #1253A11
LatchesWork-Load Rated Multidirection
Draw Latches
A - 3 15/16”B - 1 13/16”
LatchHolding Capacity (lbs.)
X - 880Y - 880Z - 1,980
31 1/2”
8 1/2”
Bottom ViewTop View
McMaster-Carr #6682A33
RequiReMeNTS
1. Portable and easy to use — quickly collapse into a backpack.
2. Sturdy — board must be able to withstand forces higher than body weight.
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Design Portfol io — Rami Hamzey 8www.ramihamzey.me
Grip Tape Bottom
Solution 1: Channel and wing nuts Solution 2: Draw latches
iMPLeMeNTATiON
Graphics
Advantages:1. Sturdy2. wing nuts are easily replaceable if they become damaged.
Disadvantages:1. Complicated disassembly.2. Too much loose hardware (12 wing nuts, washers, screws)3. if left attached to one side of the board, the two pieces are too
long to fit into the backpack.
Advantages:1. Sturdy2. quick to assemble3. All hardware remains attached to the board.
Disadvantages:1. Difficult to replace or fix draw latches if they
break.2. More expensive than wing nuts.
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Design Portfol io — Rami Hamzey 9www.ramihamzey.me
Draw latches (Solution 2) are quicker to disassemble and allow the surface of the board to remain flat. (video)
ASSeSSMeNT
1. The next version will use a flat deck that will allow the addition of hinges. it will be able to fold into a smaller effective volume.
NexT STePSturdy – work load-rated multi-directional draw latches support body weight, bouncing, turning, and kicking. (video)
Portable and easy to use – Fits in backpack with space for other gear. (video)
Click frame to play video Click frame to play video
Click frame to play video
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Design Portfol io — Rami Hamzey 10www.ramihamzey.me Design Portfolio — Rami Hamzey
Packaging Redesignevolving Story CD packaging
ObjeCTiveRedesign the cover art for a music CD.
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Design Portfol io — Rami Hamzey 11www.ramihamzey.me
RequiReMeNTS
1. Graphic Design class assignment was to redesign the cover artwork for any music CD.
2. My personal objective was to redesign the packaging to create a more engaging consumer experience.
CONCePT 1. Album: Parking Lot Music (2001) by e*vax. Listen:
2. Style keywords: entrancing, melodious, dreamscape, earworm, robotic versus organic.
in each track, e*vax lulls the listener into a comfortable dreamscape that builds complexity while feeling
cohesive.
3. inspiration: Do Androids Dream of Electric Sheep? by Philip K. Dick.
4. Final Goal: Create an evolving story line that grows in its absurdity with every flip of the book. At each turn,
the context becomes more elaborate while maintains graphical continuity.
CD Cover
CD Sleeve
Disc Label
Polycarbonate
re�ective backing
Disc Components
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Design Portfol io — Rami Hamzey 12www.ramihamzey.me
iMPLeMeNTATiON
1. This project exceeded the assignment, whose aim was creative rather than technical. if this packaging were mass produced, higher quality materials and manufacturing processes would be required.
ASSeSSMeNT
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Design Portfol io — Rami Hamzey 13www.ramihamzey.me
“Smart” Gasket SensorPiezoresistive polymer gasket
winning entry, ePiC Design Competition sponsored by Garlock
ObjeCTiveDevelop an industrial grade “smart”
gasket with the ability to sense leaks,
failures, and blowouts.
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Design Portfol io — Rami Hamzey 14www.ramihamzey.me
CONCePT
RequiReMeNTS
1. Design Prompt: Pick from a variety of different Garlock products, learn about the product, and design ways for embedding sensors
to monitor performance. Garlock is the global leader in sealing and pipeline protection products for industry and infrastructure.
2. blowouts and leaks have the potential to put the environment, community, employees, and company at risk. None of Garlock’s
products have sensing capabilities, thus failures and rigorous inspections are the only way to know when a gasket is damaged.
Rather than embedding sensors, take advantage of the materials and processes in Garlock’s manufacturing process. Gasket bulk
material could act as a piezoresistive sensor by doping it with the appropriate carbon allotrope.Sensing Circuit Schematic
WheatstoneBridge
ADCTx
Di�erential Amp
Piezoresistive Material
Possible allotropes
Carbon black expandedgraphite
Graphene Carbonnanotubes
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Design Portfol io — Rami Hamzey 15www.ramihamzey.me
Technical drawing of prototype gasket with one possible electrode geometry. Five layers of piezoresistive carbon. Two layers include electrodes.
iMPLeMeNTATiON
Silicone polymer with graphene and carbon black. varying carbon concentrations.
134 2
3 2 14
A
B
C
D D
C
B
A
1/16 5 X 1/64
24.00032.000
20 X 1.380
1.000
0.809
REVISIONS
REV DESCRIPTION DATE APPD
DIMENSIONSIN
INCHES
TOLERANCESEXCEPT
AS NOTED
FRACTIONS 1/32X.X 0.030X.XX 0.015X.XXX 0.005ANGLES 0.5
BOSTON UNIVERSITY COLLEGE OF ENGINEERINGTITLE
Gasket PrototypeDRAWN BY DATE SHEET SCALE SIZE PART NUMBER REV
Viva la piezo-resistance 12/04/2014 1 of 1 1:5 C EDC1 -
ASME B16.5 & B16.47 - 150# Flanges
SEE DETAIL B
SEE DETAIL C
SEE DETAIL A
SCALE 10:1DETAIL A
SCALE 1:2DETAIL B
SCALE 1:2.5DETAIL C
Could be implemented in existing production process, but significant development challenges remain:
1. Catering polymer properties to have a functional strain curve over typical application pressures.
2. Higher carbon content leads to more brittle gaskets.
3. Maintaining seal integrity with electrode placement.
4. Determining ideal layout for electrode geometries experimentally.
ASSeSSMeNT
Piezoresistance testing. Polymer disk detail.
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Table of ContentsAnkle Tracking DeviceCollapsible SkateboardPackage Redesign"Smart" Gasket