josh matz portfolio 2015
TRANSCRIPT
Mobile Application UX Case StudyBRIEFThe Problem: Making and Deciding on Plans with a Group
Opportunity: Social networks and messaging apps aren’t structured enough,
and calendar apps are just too formal.
The Solution: Plan Focused Messaging
The new “PlanIt” is a messaging app focused solely on helping you make plans. It
combines the casual nature of social networks, the organizational power of your favorite
calendar app, Group Voting Interface, and a Time-Limit functionality. Specifically it is:
More plan focused than social apps like Facebook / Twitter.
More casual than email and calendar apps.
More efficient than text messaging.
Prototype
http://invis.io/PH2VLUYQ6
Finalist Award Winner Silver Award Winner
BRIEFFreshRealm is a vessel delivery service that connects food makers, food packers,
merchants and shoppers using cloud technology to make fresh food accessible
everywhere and to reduce distribution time. FreshRealm Service delivers food
directly to the user’s home or place of work within two days after it is harvested. The
cloud technology and food delivery system work together to reduce food waste and
lower food costs. This product replaces current disposable packaging methods by
utilizing drawers that maximize thermal conduction and drinkable ice packs, keeping
food at optimal temperatures for 40 hours. As RKS’s mechanical engineering intern, I
worked on FreshRealm’s reusable refrigerated shipping vessel design. Within the
vessel I designed the food drawers(with FEA analysis), as well as conducted a cooler
experiment with thermocouples to analyze maximum thermal properties of
convection and conduction. I also worked on the outside corrugate box design,
including various concept generations for the front locking latches and recessed
handles—including ergonomic evaluation testing.
www.freshrealm.co
PlaneSWING
SwinGlove
Greg Norman’s
Secret
Flat Wrist ProSwinGYDESwing Jacket
SwingTip
Lag-Lock
Pro
Opportunity Zone
This Psycho-Aesthetics map
assesses the Golf Training
Device’s competitive products
through relative positioning
based on:
•Auxiliary research findings
•Qualitative assessment of the
user experience
•Benchmarking
Golf Training DeviceBRIEFAs a member of RKS’s engineering team, my role was initial design concept generation and prototyping, in addition to acting
as a communication medium between the client and our design team. This was to ensuring that the client’s needs/wants
were met, in conjunction with their initiatives:
• Disrupt the golf training-device market with a device that is as desirable and high quality as the premium equipment
golfers are accustomed to.
• Existing golf-training aids -while sometimes efficacious- fail to deliver the sophisticated design that golfers expect in their
equipment.
• Draw inspiration from analogous products for a better training experience.
Ideation
Prototype
Configuration
DefinitionMechanism Design Component Sourcing
& Details
Functional Prototype
Golf Training Device cont’d
BRIEFMy University of Delaware senior design group’s task for W. L Gore’s industrial
filter division was to design, fabricate, and develop a test stand and procedure to
characterize the lateral-direction permeability and performance of liquid filtration
media backers with respect to flow and compression.
Filter Test Rig
Concept Generation
Flow
Compression
Final Concept
SolidWorks
ImagePrototype
Image
Pressure
Gauge Load Cell
Pressure
Release Valve
Compression
Lid
Disc Backers
Base
Water
Fz
Air
Core
Bushing
Rank Want/Need Percentage
Importance
1 No loss of flow/Watertight 19
2 Apply/Measure flow rate 15
3 Apply/Measure Compressive Force 14
4 Work Effectively & Efficiently 12
5 Measure differential pressure 10
6 No temperature change of liquid 9
7 Durability 6
8 Ease of Use 6
9 Relative small size 4
10 Relative small cost 4
W.L. Gore – Lateral Permeability Test DeviceAlec Ploshnick, Josh Matz, Rich Stanton, Wen Li
Advisor: Dr. Michael Keefe
Sponsors: Kevin Cresswell, Mike Hawley, Tyler Hinkle
Project Scope:To design, fabricate, and develop a test stand and procedure to characterize the
lateral-direction permeability and performance of liquid filtration media backers
with respect to flow and compression.
Design Requirements
Project Background Testing and ValidationConcept Generation
Acknowledgments
Flow Compression
Final Concept
Needs:
Path Forward
Metrics:
We would like to thank the Engineering Faculty at the University of Delaware
for providing us with this opportunity. Also a special thanks to Dr. Keefe and
our sponsors at W. L. Gore for all the insight and help they provided us during
every step of this design project.
Following the conclusion of this project, W. L. Gore will use this device to
further characterize other backer material samples, which will determine the
best material for future filter applications.
Testing Study Topics:•Evaluating backer behavior before and after compression is applied
•Evaluating the repeatability of the testing device to generate similar results
under same conditions
•Evaluating flow rates with respect to number of samples and compression
•Evaluating flow between aluminum plates and backer samples
•Comparing different backer samples under the same conditions
SolidWorks Image Prototype Image
Problem Statement:Liquid filters produced by W.L. Gore’s industrial division combine micro-porous
ePTFE filtration membranes with macro-porous backer materials which physically
support the filtration media in the application. Up to a point, the flow rate of the
device is largely determined by the surface area of the filtration media in the device.
Higher surface areas require a larger amount of media, higher pleat counts, and
result in larger compression forces between the individual pleats. In filters with
very high pleat counts (and high compressive forces between the pleats) the working
fluid is forced to permeate through the “x” and “y” directions of the backer layer
before moving in the “z” direction through the ePTFE membrane. Understanding
the permeability / lateral flow of backer materials under various degrees of
compression is an important factor in the development of future filtration devices.
Rank Metrics Related
Want
Percentage
Importance
Current
State Value
Future Target
Value
1 Flow through B.C. 1, 2, 4, 8, 10 16 Unknown < 1% Flow
2 Range of Flow Rates 1, 2, 5, 10 14 Unknown Small: mL/hr
Large: gal/min
3 # of Backer Sheets 2, 3, 4 12 Unknown 4 ≤ 𝑥 ≤ 50
4 Testing Time 2, 4, 8, 10 11 Few hours > 10 Samples
per Day
5 Preparation Time 3, 4, 8, 10 10 1-2 weeks < 30 mins
6 Compressive Force 3, 5, 7, 10 10 Unknown 0 to 200 lbf
7 Life of Test Rig 3, 7, 10 7 Proprietary 7 years
8 Measure Pressure 5, 8 5 0 – 70 psi 0 – 100 psi
9 Measure Temperature 6, 8 4 20C – 40 C 20C – 40 C
10 Corrosion Resist Y/N 7, 10 3 Yes Yes
11 Scheduled Maintenance 7, 10 3 Proprietary Every 6 Months
12 Size 9 2 Proprietary < 4’ x 4’
13 Cost 10 1 Proprietary < $5,000
• The final concept consists of the Flow Rig, the Compression Stand, a Pressure
Dispensing Vessel, an Electronic Scale, and a Computer that gathers all the data
• The pressure dispensing vessel will be attached to pressurized air to create a
constant and accurate water flow rate in
• This water will travel through a tube attached to the water inlet hole on the Base
Plate of the Flow Rig
• The Compression Stand will then compress the Flow Rig (compressing the backer
samples) and water will begin flow
• After the water exits the backer samples into the Water Basin, the water will then
travel through a pipe and into a bucket on an Electronic Scale
• This scale is hooked up to the Computer and records instantaneous weights every
second; to determine flow rate out
• With this data, a graph of Flow vs. Compression can be generated and analyzed to
show the characteristics of each backers permeability
Scissor
Jack
Compression
Stand
How it Works:
Testing Results• Backer behavior is not affected by multiple compressions or flow tests
• Test device can produce same results after repeated tests
• Increasing number of samples increased flow rates
• Increasing compression decreased flow rates
• Flow escapes between aluminum plates and backer samples. Silicone discs
were placed in between backer and aluminum plates, resolving this problem
• Results above show varying backer sample flow rates under specified
conditions
Conclusions
0
5
10
15
20
25
30
35
0 5 10 15 20 25 30 35
Backer 4 - 6 SamplesBacker 4 - 3 SamplesBacker 3 - 6 SamplesBacker 3 - 3 SamplesBacker 2 - 6 SamplesBacker 2 - 3 SamplesBacker 1 - 6 SamplesBacker 1 - 3 Samples
Stabilized Force, lbs.
Ave
rag
e F
low
Out,
mL
/se
c.
0
10
20
30
40
50
60
70
0 5 10 15 20 25 30 35 40 45 50
10 Samples: Air Pressure = 15 psi10 Samples: Air Pressure = 10 psi10 Samples: Air Pressure = 8 psi5 Samples: Air Pressure = 14 psi5 Samples: Air Pressure = 10 psi5 Samples: Air Pressure = 7 psi
Stabilized Force, lbs.
Avera
ge
Flo
w R
ate
, m
L/s
ec.
0
5
10
15
20
25
30
35
40
45
5 10 15 20 25 30 35 40 45 50
Compression Control TestOver Compressed Test 2Over Compressed Test 1Test 3Test 2Test 1
Stabilized Force, lbs.
Avera
ge
Flo
w R
ate
, m
L/s
ec.
31
32
33
34
35
36
37
14 16 18 20 22 24 26 28
Tests Without SiliconTests with Silicon
Stabilized Force with Water Flowing, lbs.
Avera
ge
Flo
w R
ate
, m
L/s
ec.
Backer Behavior: Compression
& Repeatability Data
Flow Rates vs Compression,
Sample Size, & Air Pressure
Flow Rates between
Aluminum and Backers
Different Backer Samples:
Flow Rates vs Compression
& Sample Size
Water Flow
“Upstream”
Backer Layer
“Downstream”
Backer Layer
Retentive
Membrane Layer
Water Flow
Water In
Water
Out
Low Pleat Density
•Lower Compression
•Water flows easily
through pleats
High Pleat Density
•Higher Compression
•Water forced to flow
‘laterally’ through backers
Filter Media
within it’s CageWater Flow Path
After analyzing the data from the testing device, it was concluded that the
testing device does help with characterizing the lateral permeability of
backer material with respect to flow and compression. It was noted in the
data above that increasing sample size increases flow while increasing
compression decreases flow. On top of this, the testing device provided
accurate and repeatable results. This proves the project scope was satisfied
and the device can assist with comparing varying backer materials.
BRIEFAs RKS’s mechanical engineering intern, I created the Bill of Materials,
Critical-to-Function Drawings with tolerances, and Design for
Manufacturability & Materials analysis and selection for D&A’s 5 Legged
Guitar Stand. with GRIP™
www.heydna.com
Starfish™ Guitar Stand
BRIEF• Digitized and redesigned all mechanical hardware and fabrication data for a
manufacturer of photo booths.
• Navigated design constraints through mechanical adaptations
• Designed common parts, between four current products, to simplify fabrication
and reduce costs
www. faceplacephoto.com/
Photo Booth Design
BRIEFThe project objective was to develop, design, build, and test a new system that
allows people with a wide range of physical disabilities to row on the water in
sweep style motion as a part of a team.
An assistive device supporting both upper and lower body motion would best
afford an aspiring rower an experience most like that of an able-bodied rower. This
device aims to address the problems disabled rowers would have, namely seat
motion (including the disabled rower’s synchronization with able-bodied rowers)
and the motion of the oars.
www.yesucanusa.org
Disabled Rowing Design
Upper body design: created in order to
compensate for a lack of upper body and
arm function; and replaces the normal oar,
such that feathering in no longer a concern .
Lower body design: a simplistic way to utilize
energy from an able-bodied rower to allow
for a waist-down disabled person to row on
the water in a moving seat.
Enhanced Human Swimming Device to
Biomimic the Kinetics of a Dolphin
BRIEFThe objective was to develop a machine driven by human power to improve human
swimming capabilities. The team accomplished this goal by developing a viable
customer from which wants and needs could be extracted. Taking prioritized wants,
needs and metrics, the team then used specific design synthesis process to come up
with a team concept. With the final design selected a mock-up was created. The
mock up was created to display the kinematics of our selected concept as well as
gain a rough understanding of how the design will perform in water. This process was
highly iterative, no one step was ever complete and was always left open ended for
adjustment. Using a specific engineering process the team was able to develop a
design that improved human swimming capability’s.
Quickly Deployable Emergency
Flotation Device Launcher
BRIEFA flotation device launcher requires great accuracy and range. Since it is an
emergency tool, it must also be readily operational and reliable. Simplicity and ease
of use are also required; any able-bodied person must be able to operate it with only
basic training. Low cost is also required. The projectile itself must provide sufficient
buoyant force to keep a victim’s head above the surface of the water.
The motivation for the design is to reduce the amount of time it takes for a drowning
victim to be provided with assistance. The final flotation device launcher addresses
this problem by providing help to a victim within twenty seconds. Finally, it satisfies
the need for a simple, inexpensive design allowing it to be marketable on a large
scale.
Stair Negotiating Stroller
BRIEFThe objective was to design a stroller that can ascend and descend stairs
with the help of an adult. After completing thorough research of strollers
and analyzing possible design concepts for a stair climbing mechanism, we
were able to come up with our final six-wheel stair climbing mechanism.
The rotating stair climbing mechanism is located on the rear axle of the
stroller. We were given multiple requirements that our sponsor wanted us
to meet. Using the design of a current stroller chassis, we were able to
develop a stroller that met the weight limit for an unoccupied stroller. We
chose a chassis that is collapsible, as our sponsor requested.
Taking in to consideration the given dimensions of the stairs we would be
ascending and descending, we were able to develop the best suiting
dimensions for our mechanism. The seat for the stroller is very safe, and
the occupant can be properly secured in it at all times. The seat also
doubles as a car seat; therefore it is detachable from the stroller, making
folding even simpler.
www.v-linc.org