Sarah-Rose Lancaster is seeking employment as a mechanical engineer after graduating with a BS in mechanical engineering in June 2017. She has experience from internships at Apple, Tesla, and Pebble Technologies working on projects involving stress sensors, microphone modules, sun visors, air vents, connectors, and more. Her skills include prototyping, testing, analysis, CAD design, and working with manufacturing constraints. She also completed school projects involving sound art, an elevator installation system, and a drag reduction system for a racecar.
The development of a research and writing support site for studentsLearningandTeaching
This document discusses research and writing support for postgraduate students. It notes that while postgraduate students develop skills in their undergraduate degrees, many find meeting high research and writing standards challenging. It identifies key issues such as varied educational backgrounds, needing new skills for large-scale critical analysis and writing, and potential isolation during independent research. The aims of an online support site are outlined as developing academic skills, ensuring consistent support and standards, and creating a learning community. The document discusses pedagogical approaches to the site including self-paced modules on topics like developing proposals and presenting research. Initial feedback and usage data on the site are also presented.
BYOD (Bring Your Own Device) in the Classroom: Two Tech Tools for Fostering ...maritezita
Maritez Apigo's presentation at the Strengthening Student Success Conference on October 5, 2016 at Hyatt Regency Orange County
Tired of telling your students to put away their phones? Instead, instruct your students to take them out! The presenter will showcase two user-friendly educational technology tools for engaging students in interactive polls and administering formative assessments of student learning outcomes on their mobile devices: Poll Everywhere and Socrative. These student response systems allow instructors to identify students in need of targeted intervention strategies and to apply data-driven instruction. Through the techniques modeled and examples shared, the presenter will demonstrate the benefits of integrating technology in the classroom to advance equity and student success. This session will also provide tips and helpful resources for getting started and troubleshooting with these technologies. Bring your smartphone, iPad, tablet, or laptop to fully participate in this interactive session.
http://maritez.populr.me/sssc16
El documento resume las estrategias de marketing internacional de Lladró. Propone una estrategia global de posicionamiento con productos únicos y de alta calidad. También sugiere diversificar a nuevos sectores como marroquinería y complementos para hombres para reducir riesgos manteniendo exclusividad. Finalmente, explica que los precios son fijos excepto en Japón debido a mayores aranceles, puntos de venta y su importancia como mercado.
VisageCloud - Face Recognition meets Big Data.Bogdan Bocse
Visage Cloud merges state-of-the-art deep learning algorithms for face recognition and classification with data querying, tagging and querying techniques so as to empower you to leverage the full value of your data.
Face recognition meets big data. In cloud or on-premise.
Ricardo Fritzke has experience in electronics system design, packaging, and reverse engineering. Some of his roles and projects include:
- Reworking wiring and designing minimal electronics packaging for a Formula SAE race car to reduce weight and lower the center of mass.
- Dimensioning and reverse engineering injection molded plastic parts and IR sensor assemblies during an internship to support documentation, prototyping, and production.
- Designing and assembling high voltage test boxes to ensure functionality of repaired aircraft components.
- Providing engineering consultation to a children's home through problem definition, solution evaluation, and recommending increased maintenance to address a failing pool cover issue.
The development of a research and writing support site for studentsLearningandTeaching
This document discusses research and writing support for postgraduate students. It notes that while postgraduate students develop skills in their undergraduate degrees, many find meeting high research and writing standards challenging. It identifies key issues such as varied educational backgrounds, needing new skills for large-scale critical analysis and writing, and potential isolation during independent research. The aims of an online support site are outlined as developing academic skills, ensuring consistent support and standards, and creating a learning community. The document discusses pedagogical approaches to the site including self-paced modules on topics like developing proposals and presenting research. Initial feedback and usage data on the site are also presented.
BYOD (Bring Your Own Device) in the Classroom: Two Tech Tools for Fostering ...maritezita
Maritez Apigo's presentation at the Strengthening Student Success Conference on October 5, 2016 at Hyatt Regency Orange County
Tired of telling your students to put away their phones? Instead, instruct your students to take them out! The presenter will showcase two user-friendly educational technology tools for engaging students in interactive polls and administering formative assessments of student learning outcomes on their mobile devices: Poll Everywhere and Socrative. These student response systems allow instructors to identify students in need of targeted intervention strategies and to apply data-driven instruction. Through the techniques modeled and examples shared, the presenter will demonstrate the benefits of integrating technology in the classroom to advance equity and student success. This session will also provide tips and helpful resources for getting started and troubleshooting with these technologies. Bring your smartphone, iPad, tablet, or laptop to fully participate in this interactive session.
http://maritez.populr.me/sssc16
El documento resume las estrategias de marketing internacional de Lladró. Propone una estrategia global de posicionamiento con productos únicos y de alta calidad. También sugiere diversificar a nuevos sectores como marroquinería y complementos para hombres para reducir riesgos manteniendo exclusividad. Finalmente, explica que los precios son fijos excepto en Japón debido a mayores aranceles, puntos de venta y su importancia como mercado.
VisageCloud - Face Recognition meets Big Data.Bogdan Bocse
Visage Cloud merges state-of-the-art deep learning algorithms for face recognition and classification with data querying, tagging and querying techniques so as to empower you to leverage the full value of your data.
Face recognition meets big data. In cloud or on-premise.
Ricardo Fritzke has experience in electronics system design, packaging, and reverse engineering. Some of his roles and projects include:
- Reworking wiring and designing minimal electronics packaging for a Formula SAE race car to reduce weight and lower the center of mass.
- Dimensioning and reverse engineering injection molded plastic parts and IR sensor assemblies during an internship to support documentation, prototyping, and production.
- Designing and assembling high voltage test boxes to ensure functionality of repaired aircraft components.
- Providing engineering consultation to a children's home through problem definition, solution evaluation, and recommending increased maintenance to address a failing pool cover issue.
This engineering portfolio summarizes Shriram Vasudevan's work experience developing pressure cookers at TTK Prestige Limited and mechanical engineering projects during his Master's at the University of Illinois at Chicago. It includes summaries of projects involving Kaizen implementation, pressure cooker design and manufacturing, finite element analysis of structures, and internship work involving antenna and cable analysis. The portfolio demonstrates experience in mechanical design, manufacturing, and structural analysis.
This document provides a summary of Grace Hamann's design portfolio. It includes summaries of 8 projects: 1) EZ Composter, a self-aerating composter, 2) optimization of chimney fins for heat transfer, 3) redesign of seatbelts for increased comfort and safety, 4) balancing an inverted pendulum using feedback control, 5) testing carbon fiber composites for fatigue life, 6) a quadcopter drone for a competition, 7) a remote vehicle for nuclear facility inspection, and 8) a hybrid tricycle prototype. For each project, the document lists the design objectives, highlights of the solution developed, and diagrams or photos when relevant.
James C. Blake has a BS in Mechanical Engineering from UCSD. His portfolio includes projects involving the design of a laser Doppler sensor housing, heat sink machining, a motorized micro-alignment mechanism, an indoor electronics enclosure, custom lens mounts, and assembly instructions. He has experience with SolidWorks, Mastercam, prototyping, fabrication, and working with researchers and sponsors. In his personal time, Blake enjoys outdoor activities like mountain biking, surfing, and climbing, and playing jazz and blues guitar.
Tyler Voegele is a product design engineer with a portfolio of projects focused on mechanical engineering challenges. He enjoys problem solving and pushing his limits through competitive sports and design work. His project experience includes developing enrichment devices for animals in captivity, redesigning products for accessibility, and fabricating components for research applications.
The document summarizes several projects completed by the Carlstar Group engineering department to address safety issues and process improvements. Projects included designing guards to contain welding slag, kickers to remove stuck wheels from rolling lines, optimizing die rack layout, converting a press to hydraulic power, and developing a positive stop system for center presses to reduce wheel runout and eliminate an alignment step. For each project, the problem was described, design requirements were outlined addressing safety, fit, functionality and process needs, and the designed solution was summarized.
Phillip H. Daniel has experience designing various mechanical and electrical systems. His portfolio includes projects involving an inverted pendulum controller, a adjustable desk design, power electronics for driving motors, and a compliant force sensor integrated into a robot foot. Daniel has strong skills in modeling, simulation, hardware design and implementation, and working on multidisciplinary engineering projects.
UCSB researchers were working to improve the precision of drilling microfluidic devices by reducing setup time on a CNC mill. Team 19's project aimed to minimize setup time by 1) replacing a microscope with a high-resolution camera, 2) updating coordinate transformation software via LabVIEW to reduce alignment steps, and 3) designing a new vacuum chuck to hold both wafers and slides. Testing showed the new system reduced average setup time from 15 to 7.5 minutes and improved ease of use.
UCSB researchers were working on microfluidic devices requiring precise drilling of holes in silicon wafers and glass slides. Their CNC mill system required a time-intensive setup. The project aimed to reduce setup time by replacing the microscope with a high-resolution camera, updating coordinate transformation software in LabVIEW, and designing a new vacuum chuck to hold wafers and slides. Testing showed the new system halved the required setup time and improved ease of use.
This is a portfolio showcasing the three major projects that I have completed thus far. Included is one project from my internship with Watts Water Technologies, one project from my coursework at the University of Miami, and an extracurricular project.
Design optimization of excavator bucket using Finite Element MethodIjripublishers Ijri
An excavator is a typical hydraulic heavy-duty human-operated machine used in general versatile construction operations,
such as digging, ground leveling, carrying loads, dumping loads and straight traction. Normally backhoe excavators
are working under worst working conditions. Due to severe working conditions, excavator parts are subjected to
high loads and must work reliably under unpredictable working conditions. Thus, it is necessary for the designers to
provide not only an equipment of maximum reliability but also of minimum weight and cost, keeping design safe under
all loading conditions.
LOCOMOTIVE WHEEL ASSEMBLY DESIGN OPTIMIZATION USING FINITE ELEMENT ANALYSISIjripublishers Ijri
Underground mining is the regular happening work around the world, mainly in India for coal, iron ore, gypsum
etc…………..
Transportation of the material is the major criteria for underground mining most commonly locomotive trolleys, belt
conveyors (or) screw type conveyors are used to carry the material from underground to surface.
Locomotive trolleys are the most efficient transportation system for underground system even for human transportation
also it can be used.
Now all the mining companies are using belt type (or) screw type conveyors because of regular maintenance (or) replacement
of locomotive trolleys, but screw conveyors and belt type conveyors are making heavily wastage falling from belt
conveyors and crushed wastage from screw conveyor.
This project deals with design optimization for improving the life of locomotive trolley.
3D models will be prepared according to company standards.
FEM based analysis will be conducted on assembly to find the location of maximum stress.
Static and model analysis will be carried out by applying suitable materials and modifying part by observing the above
analysis.
Manoj Kumar Kongari is seeking a role in CAE and design. He has over 2 years of experience as a CAE engineer. He holds a B.Tech in Mechanical Engineering and certifications in SolidWorks. His project experience includes structural analysis of various mechanical assemblies and components using FEA tools like ABAQUS and SolidWorks Simulation. He has strong communication, analytical, and teamwork skills.
The document describes the design and development of a modular pedestrian bridge made of composite materials. Key points:
- The bridge is 18m wide and uses a modular assembly of identical spatial elements made of composites to reduce production costs.
- Finite element analysis was used to dimension and optimize the structure. Modal analysis found vertical and lateral vibration frequencies above the required minimum.
- A 1:1 scale physical model was made and used to create molds for vacuum bag laminating composite semi-modules.
- Modules are joined with adhesive and external carbon fiber belts. Sensors will be used to map the bridge's tension state under different loads.
This document is an engineering design portfolio for Tsuyoshi Yokoyama. It includes contact information, education background, and details of various mechanical engineering and design projects completed. Projects include designs of a motor performance testing platform, 5-axis CNC milling machine, wine opener, tensile members, fluid dynamics analysis, robot programming, and closed-loop quadcopter control. For each project, the document describes the objectives, design features, and conclusions. The portfolio demonstrates Yokoyama's skills in CAD, FEA, mechatronics design, and passion for practical engineering challenges.
This document describes a vending machine project created by Group 20. It includes subsystems like a rotating door, cup separator using a solenoid wedge design, and an aluminum outer casing. It discusses the manufacturing and assembly plan, challenges encountered like shelves splitting, and modifications made like directly attaching the motor. The document concludes with a discussion of the merits of the simple design, an estimated cost of £85, and aspects they want to improve like the user interface.
Joshua Grosserhode's engineering portfolio document contains summaries of several projects he worked on as an undergraduate student at Oregon State University studying mechanical engineering. The projects included designing an autonomously guided glider payload that was ejected from a 30,000 foot sounding rocket, building a paper launcher for a competition to launch paper balls into a target, and participating twice in a 30 hour engineering challenge where he helped build a remote control car and an automated sidewalk chalk marker. The document provides details on his responsibilities and contributions to each project.
Experience, Education, Skills, and Patents of Jeffrey M. Garrigues, Principal Mechanical Engineer. View to see my successful track record designing Medical Devices, including Piezoelectric Transducers, Oral Health Products, Tools for test and production fixtures, Electro-Mechanical devices and a whole lot more.
The document summarizes a senior design project to revise an existing biaxial tension and shear testing apparatus. The objectives were to redesign the grips to reduce bending and make the apparatus functional again. Solutions included lowering the top jack to eliminate bending moments on the bottom grips and reduce moments on top grips. The grips were also redesigned with thicker bases and longer reaches for easier specimen application. DC motors replaced stepper motors for simpler control. Testing showed reduced stresses in grips and efficient new controls.
WHY CHOOSE US
Many companies offer you either prototyping and design or manufacturing a product based on those prototypes. MEEE is different;
we do both.
Our mechanical engineering design consultants develop highly functional prototypes and help you achieve the apex position in the industry!
Just bring us an idea, and we can support you all the way from a basic concept to a fully fleshed-out product.
Aptly incorporating the brilliant concepts of electrical and electronics into existing mechanical systems in order to engender smart machines. Employing sophisticated designs and construction to create completely automated systems through electromechanical engineering. Providing ingenious solutions to problems which involve integrating software, robotics, control systems, and hardware.
This paper discusses the development of single-diameter wellbore technology using solid expandable tubular systems. It describes:
1) How over 350 commercial installations helped prove the concept and technology.
2) The key benefits of single-diameter wells which reduce costs by conserving resources, saving time, and reducing environmental impact.
3) The multi-functional tool developed which can expand casing in one trip and provides contingencies like releasing connections if needed.
4) A field test in 2004 that successfully deployed and expanded 9-5/8 inch liners to test hydraulic isolation without cement. This demonstrated the viability of the single-diameter well construction method.
More Related Content
Similar to Sarah-Rose Lancaster Mech Eng Portfolio
This engineering portfolio summarizes Shriram Vasudevan's work experience developing pressure cookers at TTK Prestige Limited and mechanical engineering projects during his Master's at the University of Illinois at Chicago. It includes summaries of projects involving Kaizen implementation, pressure cooker design and manufacturing, finite element analysis of structures, and internship work involving antenna and cable analysis. The portfolio demonstrates experience in mechanical design, manufacturing, and structural analysis.
This document provides a summary of Grace Hamann's design portfolio. It includes summaries of 8 projects: 1) EZ Composter, a self-aerating composter, 2) optimization of chimney fins for heat transfer, 3) redesign of seatbelts for increased comfort and safety, 4) balancing an inverted pendulum using feedback control, 5) testing carbon fiber composites for fatigue life, 6) a quadcopter drone for a competition, 7) a remote vehicle for nuclear facility inspection, and 8) a hybrid tricycle prototype. For each project, the document lists the design objectives, highlights of the solution developed, and diagrams or photos when relevant.
James C. Blake has a BS in Mechanical Engineering from UCSD. His portfolio includes projects involving the design of a laser Doppler sensor housing, heat sink machining, a motorized micro-alignment mechanism, an indoor electronics enclosure, custom lens mounts, and assembly instructions. He has experience with SolidWorks, Mastercam, prototyping, fabrication, and working with researchers and sponsors. In his personal time, Blake enjoys outdoor activities like mountain biking, surfing, and climbing, and playing jazz and blues guitar.
Tyler Voegele is a product design engineer with a portfolio of projects focused on mechanical engineering challenges. He enjoys problem solving and pushing his limits through competitive sports and design work. His project experience includes developing enrichment devices for animals in captivity, redesigning products for accessibility, and fabricating components for research applications.
The document summarizes several projects completed by the Carlstar Group engineering department to address safety issues and process improvements. Projects included designing guards to contain welding slag, kickers to remove stuck wheels from rolling lines, optimizing die rack layout, converting a press to hydraulic power, and developing a positive stop system for center presses to reduce wheel runout and eliminate an alignment step. For each project, the problem was described, design requirements were outlined addressing safety, fit, functionality and process needs, and the designed solution was summarized.
Phillip H. Daniel has experience designing various mechanical and electrical systems. His portfolio includes projects involving an inverted pendulum controller, a adjustable desk design, power electronics for driving motors, and a compliant force sensor integrated into a robot foot. Daniel has strong skills in modeling, simulation, hardware design and implementation, and working on multidisciplinary engineering projects.
UCSB researchers were working to improve the precision of drilling microfluidic devices by reducing setup time on a CNC mill. Team 19's project aimed to minimize setup time by 1) replacing a microscope with a high-resolution camera, 2) updating coordinate transformation software via LabVIEW to reduce alignment steps, and 3) designing a new vacuum chuck to hold both wafers and slides. Testing showed the new system reduced average setup time from 15 to 7.5 minutes and improved ease of use.
UCSB researchers were working on microfluidic devices requiring precise drilling of holes in silicon wafers and glass slides. Their CNC mill system required a time-intensive setup. The project aimed to reduce setup time by replacing the microscope with a high-resolution camera, updating coordinate transformation software in LabVIEW, and designing a new vacuum chuck to hold wafers and slides. Testing showed the new system halved the required setup time and improved ease of use.
This is a portfolio showcasing the three major projects that I have completed thus far. Included is one project from my internship with Watts Water Technologies, one project from my coursework at the University of Miami, and an extracurricular project.
Design optimization of excavator bucket using Finite Element MethodIjripublishers Ijri
An excavator is a typical hydraulic heavy-duty human-operated machine used in general versatile construction operations,
such as digging, ground leveling, carrying loads, dumping loads and straight traction. Normally backhoe excavators
are working under worst working conditions. Due to severe working conditions, excavator parts are subjected to
high loads and must work reliably under unpredictable working conditions. Thus, it is necessary for the designers to
provide not only an equipment of maximum reliability but also of minimum weight and cost, keeping design safe under
all loading conditions.
LOCOMOTIVE WHEEL ASSEMBLY DESIGN OPTIMIZATION USING FINITE ELEMENT ANALYSISIjripublishers Ijri
Underground mining is the regular happening work around the world, mainly in India for coal, iron ore, gypsum
etc…………..
Transportation of the material is the major criteria for underground mining most commonly locomotive trolleys, belt
conveyors (or) screw type conveyors are used to carry the material from underground to surface.
Locomotive trolleys are the most efficient transportation system for underground system even for human transportation
also it can be used.
Now all the mining companies are using belt type (or) screw type conveyors because of regular maintenance (or) replacement
of locomotive trolleys, but screw conveyors and belt type conveyors are making heavily wastage falling from belt
conveyors and crushed wastage from screw conveyor.
This project deals with design optimization for improving the life of locomotive trolley.
3D models will be prepared according to company standards.
FEM based analysis will be conducted on assembly to find the location of maximum stress.
Static and model analysis will be carried out by applying suitable materials and modifying part by observing the above
analysis.
Manoj Kumar Kongari is seeking a role in CAE and design. He has over 2 years of experience as a CAE engineer. He holds a B.Tech in Mechanical Engineering and certifications in SolidWorks. His project experience includes structural analysis of various mechanical assemblies and components using FEA tools like ABAQUS and SolidWorks Simulation. He has strong communication, analytical, and teamwork skills.
The document describes the design and development of a modular pedestrian bridge made of composite materials. Key points:
- The bridge is 18m wide and uses a modular assembly of identical spatial elements made of composites to reduce production costs.
- Finite element analysis was used to dimension and optimize the structure. Modal analysis found vertical and lateral vibration frequencies above the required minimum.
- A 1:1 scale physical model was made and used to create molds for vacuum bag laminating composite semi-modules.
- Modules are joined with adhesive and external carbon fiber belts. Sensors will be used to map the bridge's tension state under different loads.
This document is an engineering design portfolio for Tsuyoshi Yokoyama. It includes contact information, education background, and details of various mechanical engineering and design projects completed. Projects include designs of a motor performance testing platform, 5-axis CNC milling machine, wine opener, tensile members, fluid dynamics analysis, robot programming, and closed-loop quadcopter control. For each project, the document describes the objectives, design features, and conclusions. The portfolio demonstrates Yokoyama's skills in CAD, FEA, mechatronics design, and passion for practical engineering challenges.
This document describes a vending machine project created by Group 20. It includes subsystems like a rotating door, cup separator using a solenoid wedge design, and an aluminum outer casing. It discusses the manufacturing and assembly plan, challenges encountered like shelves splitting, and modifications made like directly attaching the motor. The document concludes with a discussion of the merits of the simple design, an estimated cost of £85, and aspects they want to improve like the user interface.
Joshua Grosserhode's engineering portfolio document contains summaries of several projects he worked on as an undergraduate student at Oregon State University studying mechanical engineering. The projects included designing an autonomously guided glider payload that was ejected from a 30,000 foot sounding rocket, building a paper launcher for a competition to launch paper balls into a target, and participating twice in a 30 hour engineering challenge where he helped build a remote control car and an automated sidewalk chalk marker. The document provides details on his responsibilities and contributions to each project.
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The document summarizes a senior design project to revise an existing biaxial tension and shear testing apparatus. The objectives were to redesign the grips to reduce bending and make the apparatus functional again. Solutions included lowering the top jack to eliminate bending moments on the bottom grips and reduce moments on top grips. The grips were also redesigned with thicker bases and longer reaches for easier specimen application. DC motors replaced stepper motors for simpler control. Testing showed reduced stresses in grips and efficient new controls.
WHY CHOOSE US
Many companies offer you either prototyping and design or manufacturing a product based on those prototypes. MEEE is different;
we do both.
Our mechanical engineering design consultants develop highly functional prototypes and help you achieve the apex position in the industry!
Just bring us an idea, and we can support you all the way from a basic concept to a fully fleshed-out product.
Aptly incorporating the brilliant concepts of electrical and electronics into existing mechanical systems in order to engender smart machines. Employing sophisticated designs and construction to create completely automated systems through electromechanical engineering. Providing ingenious solutions to problems which involve integrating software, robotics, control systems, and hardware.
This paper discusses the development of single-diameter wellbore technology using solid expandable tubular systems. It describes:
1) How over 350 commercial installations helped prove the concept and technology.
2) The key benefits of single-diameter wells which reduce costs by conserving resources, saving time, and reducing environmental impact.
3) The multi-functional tool developed which can expand casing in one trip and provides contingencies like releasing connections if needed.
4) A field test in 2004 that successfully deployed and expanded 9-5/8 inch liners to test hydraulic isolation without cement. This demonstrated the viability of the single-diameter well construction method.
Similar to Sarah-Rose Lancaster Mech Eng Portfolio (20)
1. Sarah-Rose Lancaster
Mechanical Engineering Portfolio
• Will receive BS of Mechanical Engineering in June 2017,
seeking full-time employment starting afterwards
• Completed 3 internships at Apple, 1 at Tesla
and 1 at Pebble Technologies
• Experience working with tight packaging,
cosmetic constrains and extensive reliability specifications
3. Stress Monitoring Wearable
The Technology Key Contributions
Skin
resistance
across
electrodes
+
-
Voltage Measured
At Pebble I was tasked with implementing a psychological
stress sensor on a future product. The selected sensor,
known as an electrodermal activity (EDA) sensor, measured
the conductance of the user’s skin. Since sweating is a
reaction of the body’s sympathetic nervous system,
increases in the skin’s conductance could be related to an
increase in stress through algorithmic analysis.
Electrodes
Empatica’s Embrace
with EDA sensor
Voltage Applied
Known
Impedance
Basic schematic diagram of
an EDA sensor
EDA sensors apply a small voltage across electrodes in
series with resistive elements of known impedance. The
resultant voltage across the electrodes (which touch the
skin) is then measured to determine the skin’s resistance,
and thus its conductance. As such, one of the most
important factors in the design of an EDA sensor is the form
factor of the electrodes.
Jump Scares Walk
Lying
Down
Ru
n
Prototype 2
(Back)
Prototype 1
(Back)
I researched state of the art
EDA sensors and connected
Pebble with several experts in
the field. I prototyped initial
form factors of sensors and ran
preliminary tests on the
reliability of their
measurements.
The above graph shows skin conductance vs time for the
“Prototype 2” device. The test involved the user remaining
still for 5 minutes and then watching a series of “jump-
scare” videos. Certain peaks in the graph correspond to the
user being scared. The user then walked, lied down, and
ran on a treadmill. Although preliminary data contained
motion artifacts, it confirmed that ”Prototype 2” was
adequate for accurate conductance measurement.
Electrodes
4. Pebble Time Steel Microphone Module
The Product Key Contributions
Pebble Time Steel makes uses of a microphone for text
reply and voice commands in certain apps.
Microphone
Module
Hole Insert
(Welded)
Drilled Holes
Microphone
Bracket
The microphone module is held snugly against the housing’s
mic opening through the use of a U-shaped bracket. The
bracket is secured to the housing with screws, one of which
is placed in a welded hole insert that adds significant
manufacturing costs.
Original
I re-designed the mic bracket to
eliminate use of the welded hole
insert, reducing manufacturing
costs. I explored two designs.
New One Screw Design
New Two Screw Design
The one screw design eliminated the use of one of the
drilled holes as its right side was secured by ”digging” into
a wall of the housing.
After drop testing, the two screw design outperformed the
one screw design, which came loose after ~7 1m drops
on concrete. The two screw design was used.
5. Model S and Model X Sun Visor
The Products Key Contributions
Model X Visor Reliability Testing
The Model X sun visor is unique in that it attaches to the
A-pillar of the car instead of the headliner (due to the X’s
panoramic windshield). It features a secondary blade that
flips down for extra coverage, as well as a sleek mirror
and vanity lights, concealed by a smart cover.
The Model S Sun Visor attaches to the headliner and has
a plastic cover that conceals a mirror. The visor is
currently without vanity lights.
Model S Visor Vanity Lights
Since the visor is a long, slim, cantilevered beam, it
required extensive testing to ensure it would not fail in the
field. I developed several test fixtures and procedures
which tested both the haptic and strength performances
of the visor. Of note were novel tests co-relating what a
user “feels” while using the visor to quantitative data. The
test results I obtained were used to improve the visor
manufacturing processes and obtain a better quality
product.
I developed the initial CAD and prototype for a Model S
Sun Visor that uses a smart-cover to conceal a mirror and
vanity lights. The design had to fit within the existing sun
visor shape and packaging. I gained valuable skills
working with surfacing in CATIA during the project.
I was given a timeline of only 2 weeks and managed to
impress my manager with my progress despite also
working on other projects simultaneously.
6. Model S Air Vent
The Product
The Model S air vent features a design that uses the air-
vent control knob, instead of a scroll wheel, to shut off air
flow.
Key Contribution
Improving Haptic Feeling of Control Knob Movement
The vent uses a mechanism to open and close a door at its
rear that controls air flow.
Due to the engagement of two gears at the mid-point of
the knob’s sideways movement, adjusting the air flow
direction lacked a feeling of smoothness. The
engagement of the gears would cause the amount of
force required to be higher than when the gears weren’t
engaged. I was tasked with improving the smoothness
without changing the overall design of the vent.
To achieve a smooth feeling I focused on making the
amount of effort required to move the control knob itself
higher. I broke the knob down into its individual
components and modified each until the perfect “feeling”
was found. I then worked with the air vent supplier to
translate these modifications into injection molding tool
changes to create a new air vent.
Control knob
Gears
7. iPad Pro Smart Keyboard Connectors
The Product
Apple’s iPad Pro has a Smart Keyboard accessory which
attaches magnetically through a 3-pin connector.
The 3-pin connectors on both the iPad Pro and Smart
Keyboard feature a sleek design. Working on Apple’s
Interconnect Design group I was able to contribute to both
connectors.
Key Contributions
Smart Keyboard Flex Cable
I designed the section of the keyboard’s flex cable which
sends the keyboard signals to the keyboard’s connector. A
challenging project due to tight space constraints and the
need to meet electrical engineering requirements.
Connector Reliability Testing
I developed several reliability tests for the connectors,
determining performance parameters such as corrosion
resistance and average connector contact force. The results
I provided drove design changes which led to improved
connector performance.
9. Echo – Technical Art Project
Echo is a project I completed with a partner for
Waterloo’s Technical Arts course. Echo re-
creates the sound of a heart ultrasound using a
combination of sounds from found objects.
Sheet metal in struck (bent)
position
Echo uses a combination of four actuated objects to re-create the
sound of a heart beat. A piece of sheet metal is struck to create a
whooshing sound as it bends. The glove rotates 180º and strikes the
balloons, creating a thumping noise. The box opens and closes using a
circular cam mechanism, creating a beating noise. Finally, the broom is
moved back and forth along a wooden surface using a belt and pulley,
creating a brushing noise.
Each mechanism is actuated with 180º servos that are controlled by an
Arduino Uno. The entire system begins movement once a proximity
sensor senses movement within 4ft of the piece.
Sheet Metal
Glove + Balloons
BoxBroom Proximity
Sensor
Sheet metal actuator
10. Elevator Installation Hoist System
Cambridge Elevating, located in Cambridge,
Canada, designed an electric elevator system
that uses a motor and winch assembly to lift an
elevator cab up and down a rail system. The
motor and winch assembly, which is fixed to the
top of the elevator shaft, weighs approximately
350 lbs. and the elevating company lacked a
safe method of installing it.
Working with three other students I conceived,
designed and performed detailed analysis on
an installation system for the motor and winch
assembly. The motor and winch assembly are
fixed to a small shelf that is pulled up the
existing elevator rails by a cable actuated with a
small winch and pulley. Once at the top, the
assembly is pushed onto a holding bracket and
secured.
Motor and Winch
Assembly
Shelf used
to lift
winch
assembly
Motor and Winch
Holding Bracket
Small Lifting Winch
Pulley
Attachment
for cable
connected to
pulley
Lifting
Cable
11. Elevator Installation Hoist System
The most challenging aspect of designing the hoist
system was the conceptual design phase, as the system
had several space and safety constraints to adhere to.
The system had to fit inside of a ~40 in wide elevator
shaft, of which only the back wall could bear any load.
The system also had to have a high factor of safety (>5
for any load bearing component) as well as at least 3
redundant safety features.
My major contributions to the project were developing
the idea to use a rail riding shelf to lift the winch
assembly and the detailed structural analysis of the shelf
itself. The structural analysis involved finding the
weakest points in the shelf assembly and performing
extensive calculations to determine at what loads they
would yield.
Rail Riding Shelf,
“Elbow” circled
Two of the most important considerations in the shelf’s structural analysis were the stresses in the bolted connections at the
shelf’s elbow (left), and the torsional load applied to the shelf due to eccentric loading of the shelf’s arms (FBD on right).
Extensive calculations were performed in excel which fed into an iterative design process that allowed the shelf to meet a
factor of safety of at least 5 at all critical stress points.
Second Bolt Added
12. Racecar Drag Reduction System
Working with a team of four other students I conceived,
designed and built a model of a drag reduction system for
Waterloo’s formula car. The goal of the system was to
adjust the angle of the racecars’ wings to either increase
down force or decrease drag depending on if the car was
cornering or in a straight-away.
I performed linkage synthesis
calculations to determine the
appropriate linkage dimensions. I also
performed fatigue calculations to
ensure the system would not fail.
Along with another team member I completed the
CAD for the drag reduction system. The final product, in both
the “up” and “down”
positions.