Severna Park High School
60 Robinson Rd.
Severna Park MD 21146
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Principles of Engineering
Introduction to Engineering Design
Digital Electronics
Engineering Design and Development
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Course Description
Bridge Design and Development
Marble-sorter (Control Systems)
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Design and Development
RoboPro Program Screenshot
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This survey course exposes students to major
concepts they’ll encounter in a post-secondary
engineering course of study. Topics include
mechanisms, energy, statics, materials, and
kinematics. They develop problem-solving
skills and apply their knowledge of research
and design to create solutions to various
challenges, document their work and
communicate solutions.
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Unit 4 of Principles of Engineering covered free
body diagrams, vectors, and bridge trusses. My
group was responsible for creating a bridge
with a high efficiency rating, determined by the
following formula:
Maximum Load Supported
Weight of Bridge
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•Over all our bridge’s efficiency
was 371.23
•The key to our design was our
sturdy supports above and below
the deck. The only thing on our
entire bridge that even cracked
was one reinforced popsicle stick.
Unfortunately, that one stick was in
the very center of a side on our
bridge.
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Objective: To create a device that will
accurately sort marbles by color into three
separate bins
Constraints:
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Must use only Fischertechnik parts for everything
except the hopper and the bins.
Bins must be able to hold all the marbles and their
weight
Must use ROBOPro for all programming
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These are the top, front, and side views of the marble sorter:
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This is an image of the program used on test
day:
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Course Description
Sketches (Isometric, Oblique, 2-Point Perspective)
Puzzle Cube
Chess Piece
Reverse Engineering
Final Project (Portable Soap Box)
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The major focus of IED is the design process
and its application. Through hands-on projects,
students apply engineering standards and
document their work. Students use industry
standard 3D modeling software to help them
design solutions to solve proposed problems,
document their work using an engineer’s
notebook, and communicate solutions to peers
and members of the professional community.
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Sketching is important because:
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Ideas are quickly and easily captured on paper
Ideas can be placed in an engineer’s notebook
Items can be described accurately and visually with
different perspectives
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Isometric:
Placed on a grid of 30 and 60 degree
angles to show a top-right corner view
for a small object
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Oblique:
Placed on a grid of 45 and 90 degree
angles to show a non-distorted view
of the front face while stretching the
top and right views
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Perspective:
Drawn with respect to a base point
and one or two vanishing points
to show the real perspective that the
viewer would have of a large object
such as a building
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Cube made of multiple pieces, with the following
constraints:
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Final dimensions 2.25X2.25X2.25 in.
Separated into 5 or more unique pieces
Dimensions of pieces can only be .75 in., 1.5 in. or 2.25 in.
Majority of the pieces must have three dimensions
Made in procedure, including:
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Sketches
3D Computer Aided Design
Orthographics
Assembly Drawing
Assembly Animation
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Orthographics are made for the purpose of
conveying ideas to others for the purpose of
production.
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Assemblies are a way of presenting an entire
product with all parts separated and labeled,
including the amounts of parts.
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Animations are used to show the function of an
object before it is constructed
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Group Project: Construct a set of chess pieces, with the following
constraints:
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Universal base, maximum dimensions 1” X 1” X .25”
All pieces with a common theme
Pawn with maximum height of 1”
Rook with maximum height of 1.25”
Knight and Bishop with maximum height of 1.5”
Queen with maximum height of 1.75”
King with maximum height of 2”
Construct a chess board to hold the pieces
All pieces must be parametric
Procedure includes:
Design Ideas with Sketches
 3D Computer Aided Design
 Orthographics
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I brainstormed ideas
with my group for
possible themes and
sketched them.
Ideas narrowed to
cubes, spheres, or
words
Theme of “words”
chosen with
weighted decision
matrix
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I made an
orthographic
drawing of my
piece, the Rook.
This demonstrates
the Note function
and datum
dimensioning, as
well as symmetric
dimensioning.
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A mechanical device was to be taken apart and
recreated on 3D Computer Aided Design
software. It was then to be improved upon in
some way, such as form, material, or function.
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Parts were made
using sweeps and
lofts. The piece was
then
orthographically
represented for the
purpose of
reproduction.
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I made an explosion
and animation of the
pliers. The
animation shows all
moving parts
moving through
almost the full range
of motion.
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Reverse Engineering
Assembly
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For the final project, I worked with a partner at
my school and two partners at another school.
We completed a Gantt Chart and designed a
portable soap box to be mass produced.
We made annotated sketches, Inventor parts,
an assembly, and a Windows movie of an
animated assembly and soap bar.
I made a prototype, and my partners made a
PowerPoint presentation, which we then
presented to our class.
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After creating a
problem statement,
I sketched ideas for
the product to
solve the problem
of soap becoming
wet while
showering.
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To make the design
more specific, the
sketches were
converted using
Computer Aided
Design into
orthographic format.
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The project was then
made into an
assembly, and the
assembly was
orthographically
represented with its
parts list. This is
another project.
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This is the movie animation of the soap box working (using Inventor parts). (All parts
move without collision, including the soap itself.) (The box should have springs behind the
button and two suction cups on the back, but that could not be made on Inventor.)
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Course Description
Date of Birth Project
Fireplace Circuit Project
Majority Vote Project
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Digital electronics is the foundation of all
modern electronic devices such as mobile
phones, MP3 players, laptop computers, digital
cameras and high-definition televisions.
Students are introduced to the process of
combinational and sequential logic design,
engineering standards and technical
documentation.
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I made a circuit to operate a fireplace given
various inputs. For this, I
Generated a truth table
 K-mapped the logic
 Simplified logic for two equations
 Simulated two circuits using Multisim software
 Built two circuits
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Constraints:
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One circuit used only two-input NAND gates
One circuit used only two-input NOR gates
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Before
breadboarding the
project, I used
Multisim to produce
a simulation of the
breadboard to avoid
errors.
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I created a circuit for a seven-segment display
with the following constraints:
3 switches
 Use switches to simulate a time clock
 Display my date of birth in MM-DD-YY format
 One circuit is NAND only
 One circuit is NOR only
 All other circuits are AOI only
 Solder Breadboard Companion for switches
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To avoid mistakes
and ensure the
circuit would work
correctly, I first
simulated the circuit
with Multisim
software. I also used
it to construct some
of the simulated
circuitry more easily.
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A circuit had to be designed to display
pass/fail status of a four-vote system, with one
overriding vote in the case of a tie.
The project was solved using:
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Unsimplified logic
Logic simplification
Construction of the simplified circuit
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After creating the
simplified logic, I
built the breadboard
circuit that would
turn on a light to
indicate a passing
vote.
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Course Description
Evidence of Project Management Skills Applied
Gantt Charts
Decision Matrices
Initial Sketches
Final Idea
Final Powerpoint
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Students work in teams to design and develop an
original solution to a valid open-ended technical
problem by applying the engineering design process.
Students perform research to choose, validate, and
justify a technical problem. After carefully defining the
problem, teams design, build, and test their solutions
while working closely with industry professionals who
provide mentoring opportunities. Finally, student
teams present and defend their original solution to an
outside panel.
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In order to effectively complete the project on time,
I had to use several project management tools to
achieve goals.
I used Gantt charts to track progress and set goals.
I used weighted and unweighted decision matrices
to make informed important decisions
I managed a budget
I contacted vendors to purchase materials
I contacted a mentor to have questions answered.
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Gantt charts were used throughout the year to check progress and
set goals. They are useful because goals can be set both long-term
and short-term in relevance to the length of the whole project.
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Total
Product Life
Global Environment
Aesthetics
Durability and
Maintenance
Materials
Service Life
Target Cost
Safety and Legal
Issues
Ergonomics
Operating
Environment
Performance
Size and Weight
Decision matrices can be used to make informed decisions
important to the project in an easy-to-measure manner, such as a
decision on a final design.
Customer Needs
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IDEA NAME
Weight
Telesponge
Funnel Brush
Narrow Brush
5
40
50
45
5
40
50
50
4
40
36
40
4
44
36
48
4
48
40
40
4
48
36
48
3
30
24
33
3
36
30
30
2
24
24
24
2
16
16
20
1
10
10
10
1
11
8
10
1
8
10
5
395
370
403
Reversible
3 in 1
Multiple
55
60
55
50
60
60
40
44
40
36
48
40
44
20
32
36
36
40
30
27
30
27
24
30
14
16
18
20
14
18
9
10
8
10
11
9
10
7
8
381
377
388
Flex Brush
Rubber Base
Circle Brush
40
45
35
35
50
50
44
44
40
44
40
44
36
32
32
48
44
44
30
30
33
24
30
30
20
22
20
22
18
20
11
10
10
8
9
9
4
7
6
366
381
373
SpongeOnAStick 35
Wide Head
40
Brush Back
45
45
35
50
40
40
44
44
44
44
28
32
20
36
24
44
36
33
36
27
24
30
24
22
24
22
18
22
7
7
6
9
8
9
2
4
5
355
331
379
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Initial ideas were created and then decided on by the weighted
and unweighted matrices, based on how well they pertained to
the design criteria.
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Our final idea, to solve the problem of the bottom
edges of walls becoming dirty, was a device with a
flexible shaft and flexible head.
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To present our project, my group and I created
a PowerPoint that summarized our entire
project:
Final Presentation