Sebastian Krumhausen is a design engineer student at the Danish Technical University. This portfolio showcases projects from his studies, including public playground equipment, redesigning a disability vehicle, designing an electric razor for Smeg, and modeling a cell phone using CAD software. The portfolio is intended to serve as a visual resume demonstrating his engineering design abilities.

1. Sebastian Krumhausen
Design engineer student at DTU
March 2010
Design portfolio

2. About
This printed portfolio is a collection of my finalized
projects at the design engineer education at the Dan-
ish Technical University. The portfolio serves as a visu-
al resume created to show my abilities in engineering
design. The projects and my blog about design and
technology can be found at krumhausen.dk
Many of the projects were produced in groups. The
portfolio is created in Adobe InDesign.
Stud. Polyt Sebastian Krumhausen 40850643 krumhausen.dk sebastian@krumhausen.dk

3. Index
Public playground equipment: Urban surfer
Redesign of disability vehicle: Trilet® - Pull2Place
Industrial design project: Smeg® Shaver
CAD: SonyEricsson® W880i
Mechatronics: Washi - The window cleaning robot
Java: Theatre booking system
Workspace Design: Frederiksberg hospital
Mobile technology: Context aware contact book
sebastian@krumhausen www.krumhausen.dk

4. The project on the first semester of the design engineer
bachelor dealt with user oriented design. The assigment
was to develope a new public playground equipment to
be used in the municipality of Copenhagen. A solution was
identified and developed based on a group of potential us-
ers. Three concepts were generated based on realized user
requirements collected though fieldwork. A final solution
was developed and its mechanical and material problemat-
ics analyzed. The final solution can be found on the right
side. Below are the concepts that did not make it.
Dismissed concepts

5. In the second semester the project
work was about redesigning an
existing product, in our case the
Trilet. We did a broadly-based multi-
dimensional analyses of the prod-
uct. Within a limited time frame we
managed to derived to a reasonable
result based on the analysis.
The course gave the fundamental
principles in order to understand
machines and product design such
as functionality, structure, manufac-
turing process as well as the socio-
technical context the products is a
part of ( e.g. users, usage, manu-
facturers, environment, competitive
condition, etc).

7. Smeg wishes to expand their product range of Market segment Concept words
household appliances by introducing a new electric Young men often on the run in their twentieths to The future in the sixties
razor. The desire is to continue the Smeg retro de- forties. Out ruling children and senior citizens. The Jetsons
Design brief
sign and incorporate it into a modern shaver. target group has an interest for sci-fi. They have a Space age
technological background and will properly have a Retro
Concept propensity for gadgets. Pastels
A small electric razor that is suited for travel. Its
charged with electromagnetic induction. A product Dimensions and materials
from the sixties space age. The visual expression The shavers grip fits in a standard sized hand. The
is futuristic, based on the outlook on the future the razor in ergonomic shaped and does not place strain
Americans had in the sixties. I.e. rounded shapes, on the wrist. The materials can withstand water and
pastels and plastics. Sixties optimism doesn’t cause allergies.

8. SONY ERICSON W880i
CAD - Computer assisted design
- project on the third semester.
Modelling of SonyEricsson w880i
with CAD software ProEngineer.
Completed in 8 hours.

9. Washi - The window cleaner
Mechatronics is the synergy of mechanical en- The robot’s triangular shape and the position of
gineering (ME), electronic engineering (EE), and the wheels allows the robot to turn without hit-
information technology (IT). System thinking is ting the window frame. The robot adheres to the
the essence of mechatronics window by a suction mechanism.
The project: Washi - a household robot. We de- The user places the cleaner in a random place on
signed Washi - an automated window cleaner. the window. Washi finds the top corner, begins
cleaning and finish in the bottom corner. The
Complete system design, based upon selected robot is able to sense approaching obstacles or
components in the mechanical and electrical window frames. It can decide when to turn, and
domain. Verification of the solutions behavior with in which direction to continue. The robot informs
software tools such as state diagrams and Lego the user about its power levels and cleaning fluid
Mindstorm software. levels. Before use, the robot indicates how many
square meters of window surface it should be
able to clean.

10. Theatre booking system
Java based movie theatre booking system. The program
enables users to book specific seats in a theatre. The
program takes full advantages of OOP - Object-Oriented
Programming by dividing code into smaller bids, classes
controlling themselves.
The program is build according to MVC, the Model–view–
controller software design pattern. The graphic and logi-
cal part of the program are kept separate. This approach
enables changes in the graphics without interfering with
the core functions.

11. Frederiksberg Hospital - Rheumatologic department
Frederiksberg and Bispebjerg logical patient flow system controls
Hospital are facing a merger of their the flow of patients by directing
rheumatologic wards. The future them to the correct clinic in the re-
ward must handle a major increase spective department. One common
in patient flow risking a compromise waiting room allows for supervision
in work environment and patient of the patients and lets the doc-
handling. tors call for patients when needed.
The Workspace design of the Creating a “pull” flow instead of a
Frederiksberg rheumatologic ward “push”. The design features a future
includes a more logical reorganiza- proof solution that is able to handle
Workspace design
tion of the internal departments and a severe increase in patient num-
rearrangement of clinics. A techno- bers over the years.

12. Context Aware contact book
In this project a contact book with Using data from multiple sensors to
extended information about the context create a comprehensive context aware
of the users was designed. Part of this state allows them to be specified to
design was implemented in a proto- a very useful level of detail. The user
type for the Nokia N95. The application will still have to define the states due
adds an extra dimension to the existing to limitations in machine learning. The
contact list on the phone, enabling the more specifc the states get the more
user to make decisions on whether or user input will be required.
not to get in touch with the contact.
Furthermore it gives the user a clue on By using a social media service the us-
which contact method is best suited ers will be able to share states lowering
according to the current status of the the workload on the individual user.
contact.
This approach and the association of
The Facebook part of the design intro- the state with an activity allows for rich
duces an extended usage of the states user interaction and resolution about
which enables further interaction be- choice of contact. Conveying this
tween the users, where they can “like”, information to the other users will ease
comment and manage the states. communication between contacts.

13. SEBASTIANKRUMHAUSEN
Poppelgade 16, 3th,
2200 København N, DK
Birthday: 16.06.86
Phone: 40850643
E-mail: sebastian@krumhausen.dk
Blog & Portfolio: www.krumhausen.dk