Hello. I am an industrial designer interested in creating unique products and experiences that enable people to do what they want, think, and wish they could do, but better.
Education
Experience
The Ohio State University / Columbus, OH / 2010-2015 (expected) Bachelor of Science in Design, Industrial Design / GPA: 3.7
Kimberly-Clark Healthcare + Professional / Roswell, GA / Jan-April 2014 ID Intern. Currently working on different points in the design process of multiple projects within both the Kimberly-Clark Healthcare and Professional product lines.
Northwestern University / Evanston, IL / 2002-2005 Bachelor of Art, Biology (Physiology)
Michael Graves Design Group / Princeton, NJ / May-Dec 2013 ID Intern. Contributed to the design process for several clients on projects ranging from consumer healthcare products for the elderly, kitchenware, and home goods. Took part in research, ideation, sketching, prototyping, and 3D modeling.
Feinberg School of Medicine / Chicago, IL / 2005-2006, 2008-2009 Doctor of Medicine, unfinished
Chemical Abstract Services / Columbus, OH / Aug 2011-May 2013 Student Staff Analyst. Working part-time, 10-20 hours a week, analyzing research abstracts that go into one of the largest databases of biochemical research papers in the world.
Skills Analog sketching rendering design research thumbnailing storyboarding
ideation prototyping branding styling photography
Digital Adobe Photoshop Adobe Illustrator Adobe InDesign Keyshot Maya
Microsoft Office Photoview 360 Sketchbook Pro Solidworks (Rhino equiv)
Honors AT&T Student Scholarship Lucent Student Scholarship OSU Design Showcase Spring 2011/2013
Dean’s List 2011-2013 InNUvation Semifinalist 2009
Center for Automotive Research / Columbus, OH / June-Aug 2011 ID Intern. Assisted in the fabrication of a working prototype for a novel concept that was eventually patented (NDA). Most of the work involved machining metal and forming plastics.
Interests Learning about other aspects of design such as human factors, info design, and design history. Playing music (violin for 14+ years, guitar for 2+ years, cajon in the future). Tinkering with hi-fi audio equipment (current setup: FLAC > foobar > ODAC > O2 Amp > Sennheiser HD600). Right now I am trying to build a tube headphone amp. Riding my bicycle to commute to school and experimenting with components.
leearng.chang@gmail.com www.coroflot.com/leearng
Content 01 02 03 04 05 06 07
Salt+Pepper Set Faucet Kanga Pen Sander Wireless Mouse Infographics Sketches
01 3 weeks
Salt+Pepper Set Using a set of opposing words, create a salt and pepper shaker.
1.125”
0.25” 0.0625“
0.125” 0.25”
1.875”
2.75”
0.875”
0.0625”
1.3125”
6.75”
4”
4.875”
3.25”
1.5”
1.5625”
Sketching led to the word pair of mother and child with penguins as the inspiration for form.
A technical drawing was done using Adobe Illustrator to show the inner components including the grinder and stoppers
0.5”
Proper sizing and comfortable usage are important considerations.
Foam prototypes allow for quick exploration of concepts and forms. Ideas like a intersecting/interacting forms and weighted base/bobbing shakers were tested.
The playful moment between the salt and pepper shakers fits well with the warmth of the kitchen. In the future, I would like to experiment with other colors, materials, and finishes to target a wider range of users.
02 2 weeks
Faucet Design a modern faucet utilizing a variety of shapes, surfaces, and materials using Solidworks and Keyshot.
Modern and clean as well as ideas from Japanese bamboo water gardens contributed to the form.
Two interesting ideas were to have a separate spout at the end of the faucet head that would be specifically for rinsing out your mouth after brushing your teeth and a toothbrush holder built into the faucet.
A playful rubber ball controls the sink stopper and is located in the typical position.
Rubber lined toothbrush holder integrated into faucet. Sweeping lines and a piercing profile were inspired by the bamboo spouts that are a part of the Zen gardens in Japan.
Rubber gripped hot and cold knobs are pointed towards the user for easier access.
Based on my sketches, I used Solidworks and Keyshot to render this modern and sleek looking faucet with matching black marble countertop and porcelain sink. Several changes to the colors and materials, as well as small details, were made for the final design.
03 8 weeks
Kanga Design a way for the elderly to get groceries more easily.
Problem Statement Getting groceries from the store back home presents unique challenges for seniors living in urban areas due to health limitations and the various environments and obstacles they face traveling from home, to the grocery store, and back.
In particular, the lack of a convenient way to open and close/fold portable shopping carts can lead to back pain and injury.
The new portable shopping cart must be able to easily fold into a compact/flat form as well as improve accessibility, maneuverability, and safety,
Interviews + Observations
This 2-wheeled cart is more comfortable pulled although when grocery shopping, Dorothy prefers having the cart in front of her so she can see the food she has bought.
Dorothy is an 85 year old woman who lives with her daughter and son-in-law, but drives her own car and buys groceries on her own.
Once again, stairs pose a serious problem. Ramps and elevators are used whenever possible. Wheel with a diameter under 7 inches are very difficult to get up stairs with a full load.
Dorothy must bend close to 90 degrees while using her other hand for support, in order to flip up the bottom panel and close the cart properly. This particular cart likes to flip open randomly and has no locking mechanism to keep it closed while being pulled/pushed.
Seniors avoid using the self-checkout and almost always allow the bagger to bag their food and arrange them in the cart to avoid crushing things. Being able to fold flat is important for lifting and storage in the trunk.
Brainstorming With the broad guidelines of accessibility, maneuverability, and safety, along with the primary objective of a more easily accessible and intuitive folding mechanism, ideas were generated. No matter how silly the idea seemed, it was put on paper and posted up.
Accessibility
Maneuverability + Safety
Ideation The quick post-it ideas from the brainstorming session served as a guide for further ideation. Rough concepts were developed for various aspects of the cart.
Sketches Several more fleshed out ideas and forms were sketched with a perspective and two orthographic views, as well as several callouts to label features. I still did not feel like I had a clear direction but chose to prototype some ideas to get a physical sense of how to move forward.
Prototyping Further prototyping continued as I still was not comfortable with any of my ideas. The breakthrough came while I played around with different PVC pipe orientations and saw an opportunity to bring the open/close mechanism closer to the user. Through Solidworks I was able to change lengths and angles to confirm that certain geometries worked. The fourth prototype looks similar to the first but there are angled side tubes that are attached at a pivot point to the bottom rack and vertical tube. So by moving both sides up, the bottom rack can fold up while the angled tubes become parallel to the vertical tubes.
A good idea came to me to simplify the mechanism by putting a central bar across that would be attached to the sliding joints. It would have a spring loaded button so that the user could bend down slightly and grip/press the button releasing locking pins. Then, by pulling up, the cart would be able to close and pins at the top would lock it in the closed position. What required two hands now only requires one Experimentation was also done with wheel sizes and the typical small plastic wheel was compared against larger rubber wheels. The larger wheels were significantly better for getting up stairs. A swivel front wheel was later tested briefly to address concerns with 2-fixed-wheeled carts.
Final Concept
Solidworks An initial framework was set up to make sure the physics worked for the opening/closing mechanism. Several wheel designs were mocked up for both the front and rear wheels. After the tubed frame was set, the plastic joint components were added as well as the handle and bag. Colors and materials came last.
Kanga portable shopping cart
natural rubber grip: excellent flex, tear and abrasion resistance Cordura nylon bag: durable and resistant to abrasions and tears
nylon injected plastic molded joints: strong, durable, resistant to abrasions
65”
34”
25” 18”
Body measurements were based on the average height of men and women between the ages of 60-69 years old, 5’5” or 65” tall. The older, the shorter the average height.
aluminum round tubing: good strength to weight ratio, natural protective layer, bright and glossy finish
natural rubber tires: excellent flex, tear and abrasion resistance
A back pouch provides convenient access to small items similar to a regular shopping carts’ front space. Adjustable, padded handlebars allow multiple positions for both pushing and pulling, and with tilt of frame, help avoid the cart clipping the feet.
The bag is made from Cordura, making it durable, resistance to abrasions and tears, and waterproof.
A front swivel wheel increases maneuverability over fixed 4-wheeled carts and stability over 2-wheeled carts.
Close access to the open/close button minimizes risks of overextension and back injury while locking things in place. Only one hand is needed to operate.
Side and front reflectors increase visibility to cars and bikes.
8 inch oversized rear wheels make it easy to go up stairs and curbs which can be 7 inches tall.
A rubber grip lined bottom rack keeps the bag and its contents in place and can be used as a traditional hand cart.
Kanga portable shopping cart
Kanga is a portable shopping cart designed for seniors on the go who are looking for a convenient way to carry their groceries. Whether it be on a sidewalk, in a bus, or at the grocery store, Kanga maneuvers past obstacles with ease. And with a simple push of a button, folding the cart flat is easy and painless.
19
04 6 weeks
Pen Sander Create a Ryobi pen sander that addresses ergonomic and usability concerns.
WHAT WHATARE AREPEN PENSANDERS? SANDERS?
Pen sanders are a type of detail sander that is hand-held and Pen sanders are a type of detail sander that is hand-held electricity-powered, and is able to remove fine bits of material in small and electricity-powered, and is able to remove fine bits of and hard to reach areas using an assortment of interchangeable tips. material in small and hard to reach areas using an assortment of interchangeable tips.
PROXXON? Proxxon is the market leader in this niche market and focuses on small power tools for hobbyists and model makers.
WHO USE PEN SANDERS? Pen sanders are used by hobbyists and model makers who deal with materials such as wood, metal, plastic, and clay and need to take away small amounts of material.
model makers
hobbyist
desks (sitting)
workbench (standing)
small models + tiny details
tight corners + spaces
WHERE ARE THEY FOUND? Although small enough to be portable, they are commonly found on workshop desks with flat surfaces used for intricate and detailed work as well as small spot jobs.
HOW ARE THEY USEFUL? Pen sanders are extremely useful for smoothing out tiny details on small models. Traditional detail sanders cover too large and area and cannot fit in small spaces and corners while hand sanding faces similar challenges and can create uneven surfaces.
HUMAN INTERFACES 1) indentations for thumb and index finger 2) on/off switch on end of pen sander 3) on/off switch on power transformer (redudant) 4) twist feature to exchange and lock tips 5) circular body that can be rolled on fingers and in the hand 6) speed dial on the power transformer (NOT on the pen) 7) vents on the pen body/motor areas for cooling 8) circular coiled power cord that is stretchy 9) hole slots to hold tips 10) holder on power transformer
OTHER • • •
Proxxon has very little color coding (everything is green with some black parts and yellow highlights) the pen sander is not particularly ergonomic and is essentially a cylinder everything is made of plastic and you must use a screwdriver to take a look at the innards of the pen sander (makes it more difficult to diagnose/fix problems)
1
2
3
4
5
6
7
8
9
10
MOTOR REVERSE ENGINEERING In order to better understand how the pen sander works, I opened it up to take a peek into the innards. The mechanism was a lot simpler than I thought it would be.
weighted cuff + shaft
plastic spindle
motor
on/off trigger
BRAINSTORMING This phase involved trying out different concepts via thumbnails. It is here where I looked into a battery adapter for the ONE+ battery on the waist in the form of a belt and on the arm like an mp3 armband. Grips were explored as well as putting on a mouse scrollwheel like feature to control the speed. A more curved form based on an airsprayer was developed. Special emphasis was placed on enabling 2 grips, a pen grip and an overhand grip.
STUDY MODEL A study model was created to test the general forms and feels and were partially based on the motor configurations before. The key part of this step was to test for feel and ergonomics based on the 2 hand positions I described previously. I wanted to give more support to both the pen grip and the overhand grip so adding more palm support to the pen grip and more pinching like support for the overhand grip.
indd 1
ONE+ PEN SANDER ONE+ PEN SANDER The Ryobi ONE+ Pen Sander is a concept power tool that gives hobbyists and model makers more flexibility in terms of comfort, control, and precision. speed control scrollwheel + on/off button
silicon (grips)
plastic (body)
plastic (accents) interchangable tips
The Ryobi ONE+ Pen Sander is a concept power tool that gives hobbyists and model makers more flexibility in terms of comfort, control, and precision.
screwless access to motor (slide out)
tip adjustment/rotation
speed control scrollwheel + on/off button
silicon grip areas offer comfort and control
silicon (grips)
plastic (body)
vents keep the motor from overheating
o-ring allows for flexible hand positions and place to hang tool
cord exit position to battery adapter (on armband or belt) centralizes balance
plastic (accents)
interchangable tips
A silicon o-ring gives users greater flexibility in transitioning from a pen position to overhand position. It also serves as a pinching point for the overhand grip and a way to hang up the tool when not in use.
The tip can be rotated (360 degrees) to a fixed position to avoid having to rotate your wrist in awkward positions.
A scrollwheel on the top serves as an on/ off switch and is readily accessible on the pen instead of on the battery adapter.
Many users complain about power tools breaking down and not working. Giving easy access to the innards through a screwless method enpowers users to figure out how to fix their tool instead throwing it away.
The battery and battery adapter allow for the user to be mobile around his or her workspace and can be attached to an armband or belt.
Holes on the battery adapter are magnatized with the tips to allow to quick and easy access to different types of tips.
tip adjustment/rotation
Instead of coming out the back, the wire connecting the pen sander to the battery adapter exits from the bottom, any jitters from the wire are reduced as the wire is closer to your hand and center of balance.
Extra sandpaper adhesives can also be stored in the battery adapter storage compartment and torn off quickly to replace worn out sandpaper adhesives.
4/25/2013 7:28:36 AM
silicon grip areas offer comfort and control
cord exit position to battery adapter (on armband or belt) centralizes balance
screwless access to motor (slide out)
vents keep the motor from overheating
o-ring allows for flexible hand positions and place to hang tool
to hang tool
Feature Details
A silicon o-ring gives users greater flexibility in transitioning from a pen position to overhand position. It also serves as a pinching point for the overhand grip and a way to hang up the tool when not in use.
The tip can be rotated (360 degrees) to a fixed position to avoid having to rotate your wrist in awkward positions.
A scrollwheel on the top serves as an on/ off switch and is readily accessible on the pen instead of on the battery adapter.
Many users complain about power tools breaking down and not working. Giving easy access to the innards through a screwless method enpowers users to figure out how to fix their tool instead throwing it away.
The battery and battery adapter allow for the user to be mobile around his or her workspace and can be attached to an armband or belt.
Holes on the battery adapter are magnatized with the tips to allow to quick and easy access to different types of tips.
Instead of coming out the back, the wire connecting the pen sander to the battery adapter exits from the bottom, any jitters from the wire are reduced as the wire is closer to your hand and center of balance.
Extra sandpaper adhesives can also be stored in the battery adapter storage compartment and torn off quickly to replace worn out sandpaper adhesives.
RENDERINGS The renderings were done in Solidworks and show several different perspectives. With more time some of the wrinkles in the otherwise smooth surfaced model would have been ironed out and perhaps some more complex vanishing lines would have been included. Keyshot was also used to add better materials to the model.
05 4 weeks
Wireless Mouse Take any existing object and using surface modeling, recreate it using Solidworks.
Logitech Wireless Anywhere MX Mouse This Solidworks exercise demonstrates the application of complex curves and surfaces as well as vanishing break lines.
06 4 weeks
Infographics Design infographics posters based on both researched and gathered data.
Columbus Weather Weather metrics such as high, low, and average temperatures, snowfall, rainfall, etc. were graphed and arranged to reveal interesting trends.
History of iPods This infographic shows the history of the iPod family by comparing the change in price, battery life, and storage space in relation to Apple’s stock value and the number of songs sold through iTunes.
07 ∞ ∞
Sketches Various sketches from different projects or just for fun.