1. Clara Mankowski
Academic Portfolio
88 Roads End Lane
Severna Park, MD 21146
(410) 647-7393
ccpm1@mac.com
Severna Park High School
60 Robinson Road
Severna Park, MD 21146

2. Table of Contents:
• Principles of Engineering (POE)
• Introduction to Engineering Design (IED)
• Digital Electronics (DE)
• Engineering Design and Development (EDD)

3. Principles of
Engineering (POE)
Cahoon 2012-2013
Bernstein 2013

4. Principles of Engineering
Through problems that engage and
challenge, students explore a broad range of
engineering topics, including mechanisms,
the strength of structures and materials, and
automation. Students develop skills in
problem solving, research, and design while
learning strategies for design process
documentation, collaboration, and
presentation.

5. Principles of Engineering
– Statics: Truss Project
– Controls System: Marble Sorter Project
– Trajectory Motion: Ballistics Device
Main TOC

6. Truss Project
The aim of this project was to build a truss with a high
efficiency rating. This would be achieved by having the
weight of the truss be very low and the maximum load
weight be high. The goal was to achieve the best possible
efficiency rating with the truss constructed. The truss had to
be exactly 6.5 inches long and no more than 3.25 inches
tall. Before the truss was built, several designs were
thought up and tested using the equation 2J=M+R to see if
they were statically determinate. The determinate designs
were then tested in MD Solids in order to see how much
strain would be put on each member. The truss was tested
with the Structural Stress Analyzer in order to find out the
maximum load that our truss could hold.
Main TOC POE TOC

7. Truss Design and Analysis
The truss constructed weighed .008 pounds. The
maximum load that it held was 55 pounds, which
made the efficiency of our truss 6875%. It was 6.5
inches long and 1.75 inches tall. It broke at the
lower right corner after 55 pounds of force had
been applied.
Main TOC POE TOC

8. Weight of
Truss (g)
Weight of
Truss (lbs)
Weight
Held (lbs)
Efficiency
(%)
4 .008 55 6875

9. Marble Sorter Project
The aims of this project were to construct a
marble sorter out of Fishertechnik pieces
and run by a program created in the
RoboPro programming software. The marble
sorter had to sort numerous marbles into
their respective groups based upon their
color.
Main TOC POE TOC

10. Marble Sorter Analysis
In the end, the marble sorter did not work perfectly-
the motors did not cooperate with the color
analysis of the marble, and the build could have
been improved. Pieces of the machine had to be
adjusted and fixed throughout the testing process,
and even after this, it didn’t always work correctly.
However, all the colors of the marble were
identified perfectly, even if they did not end up in
their color designated area.
Main TOC POE TOC

11. POE TOC

12. Ballistics Device Project
We had to create a device fitting in a
footprint of 1’x1’ to launch a ping pong ball
accurately within a given range of 5-15 feet.
It had to be adjustable to shoot launch the
ball from at least 9 different angles, and
have a constant initial velocity, as well as not
use any combustible materials or high
pressure gases.
Main TOC POE TOC

13. Ballistics Device Analysis
Our device met the restraints of being 1’x1’,
launching 5 to 15 feet, and shooting at a constant
initial velocity. It consisted of a cannon with a
loaded spring that would be pulled back via string
to shoot. The cannon was mounted on a dowel
rod, where it could be turned to set different
angles. However, it wasnt entirely accurate every
trial due to human error, and we could not make it
inside the target box when testing.
Main TOC POE TOC

14. Main TOC POE TOC

15. Main TOC POE TOC

16. Introduction to
Engineering Design
(IED)
2013-2014
Mr. Hill
Main TOC

17. Introduction to
Engineering Design
Students dig deep into the engineering
design process, applying math, science, and
engineering standards to hands-on projects.
They work both individually and in teams to
design solutions to a variety of problems
using 3D modeling software, and use an
engineering notebook to document their
work.

18. Introduction to Engineering
Design (IED)
- Brainstorming
- Autodesk Inventor
- Puzzle Cube
- Chess Piece
- Reverse Engineering
- Final Project- Design Process
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19. Brainstorming
Main TOC IED TOC
• Design and build a prototype of
a cereal bowl to take breakfast
on the go
• Used brainstorming principles:
• Quantity, not quality
• No criticism
• Free for all
• Pile on
• All ideas went down on the
paper, regardless of feasibility
• Group chose most marketable,
highly valued elements to
combine together for final
product idea

20. Sketches
• Free-hand sketches are
completed before
technical drawings
• Allow ideas to be put on
paper without precision
• Isometric, oblique, and
perspective
Main TOC IED TOC

21. Technical Drawings
• Using different line techniques, I was able to
create precise technical drawings
• These drawing used precise measurements in
order to present a design
• Symbols and lines represent different aspects of
the board drawing
Main TOC IED TOC

22. Puzzle Cube
Main TOC IED TOC
• Objective: design a 3x3x3 cube puzzle made
of 5-6 pieces
• Create isometric sketches to plan out the
cube
• Work in Inventor to learn how to design
and assemble a project

23. Puzzle Cube
• First, I created isometric drawings in order
to represent my idea of what I wanted my
cube to look like
• Using the ideas I had,
I composed rough
sketches of each piece
Main TOC IED TOC

24. Puzzle Cube
Main TOC IED TOC
• Each individual
piece was
constructed
using Inventor
• Orthographic
drawings were
created in order
to show
dimensioning

25. Puzzle Cube
Main TOC IED TOC
• An assembly orthographic drawing displays
the placement of the cube pieces
• The separate pieces are listed for a
manufacturer or user

26. Click Here For Assembly Animation if Above Fails
Click image for animation
Main TOC IED TOC
An assembly
animation
shows the
assembly of
the cube
Puzzle Cube

27. Chess Piece
Main TOC IED TOC
Groups worked to create a full chess set by
assembling individual pieces
Constraints:
• Piece must be 1.50-1.75 in. tall
• Must be derived from a uniform base
• Have at least 2 applied features
• Design must be parametric
• Fit in a 1.50 in. x 1.50 in. square column
• Must be made of ABS Plastic

28. Main TOC IED TOC
Chess Piece: Parametrics
A parametric spreadsheet was used to make
size adjustments convenient and easy

29. Main TOC IED TOC
Chess Piece
My piece was the rook, a sea monster
tentacle that used the loft, extrude, and filet
features

30. Driving Constraints
Click image below to play video
Click if above video fails
Main TOC IED TOC
Objective:
• Assemble and
simulate compressor
movement by driving
a constraint on the
flywheel
• The animation should
allow others to
understand function
and capabilities

31. Reverse Engineering
Objective:
• Working in small groups, we constructed a
device using Inventor to display the
structural, functional, and visual elements of
the product
Constraints:
• A Gantt chart had to be used to monitor time
• Must include driving constraint
Main TOC IED TOC

32. Our group chose a small LED
flashlight for this project,
because it was relatively
simple and we thought we
could complete it within the
time limits. This flashlight can
be obtained through the Dollar
Tree® franchise.
Click here to view the final report
Reverse Engineering
Main TOC IED TOC

33. I was assigned to the
measuring and digital
reconstruction of the top that
attached to the keychain
Reverse Engineering
Main TOC IED TOC

34. Reverse Engineering
Assembly orthographic drawing of the flashlight
Main TOC IED TOC

35. Click image below to play video
Click if above video fails
IED TOCMain TOC
Assembly video of all separate components of the flashlight
Reverse Engineering

36. Reverse Engineering
Click if above video fails
Click image below to play video
IED TOCMain TOC
The driving constraint, shown below, demonstrates the
movement of the flashlight when turned on or off

37. Final Project
Objective:
• Use the design process in order to identify a
problem and identify a solution for that problem
• The problem our group targeted to solve was
injury caused by kick scooters swinging and
hitting the user in the shins or ankles.
• Based on our research, no other solutions have
been developed, although the problem is valid.
IED TOCMain TOC

38. • When surveyed, 71% of people reported this being
an issue, and we determined that our problem was
valid.
• Working together, we developed an accessory that
could be attached to a standard Razor® scooter
• Composed of a base hinge and a top handle hinge,
the device would restrict the rotational movement of
the scooter and prevent it from swinging when the
top handle was squeezed together.
• Click here for the final report.
Main TOC IED TOC
Final Project

39. Several ideas were
considered in the
process of designing
our product, and the
pros and cons of
each were weighed in
a design matrix to
make the final
decision on which
solution we would
pursue
Main TOC IED TOC
Final Project

40. Main TOC IED TOC
Once we decided what solution
we were going to create, we
began sketching it out and
creating computer models on
Autodesk Inventor
Final Project

41. IED TOCMain TOC
The below images of the assembly and the assembly orthographic drawing
show the final product.

42. Main TOC IED TOC
The below clip demonstrates the squeezing shut of the
top hinge loop in order to stop the scooter from swinging
around.
Click the below image to play.
Click here if above fails.

43. Digital Electronics
(DE)
2014-2015
Mr. Milcic
Main TOC

44. Digital Electronics
Students study topics such as combinational
and sequential logic and are exposed to
circuit design tools used in industry,
including logic gates, integrated circuits, and
programmable logic devices.

45. Digital Electronics (DE)
• Majority Vote Project
• Fireplace Control Project
• Date of Birth Project
• 60 Second Counter Project
• State Machine Design Project
Main TOC

46. Majority Vote Project
The purpose of this project was to design an
electronic voting machine that would accept the
casted ballots of 4 board members and determine
the pass/fail status of their decisions. There are
four members, and each member gets one vote,
yes or no. For the decision to pass, a majority of
the board members must vote yes. If two vote yes
and two vote no, the president’s vote is used to
break the tie- if the president votes yes, the
decision passes.
DE TOCMain TOC

47. Design
Main TOC DE TOC
Truth table of the Majority Vote Project Majority Vote un-simplified circuit design

48. Design
Boolean algebra simplification used to
determine the simplified equation (above)
Main TOC DE TOC
Final simplified circuit design (below)

49. Simulation
Main TOC DE TOC
The Majority Vote project as built and simulated in Multisim.

50. Prototype
Main TOC DE TOC
The breadboarded majority vote project

51. Fireplace Control Project
The objective of this project was to redesign
a previously existing circuit to control two
outputs (an alarm and a sprinkler) using only
NAND and NOR gates. Once the circuit had
been designed, it was simulated on Multisim
and breadboarded to be a functional circuit.
Main TOC DE TOC

52. Design
Main TOC DE TOC
Truth table of the
Fireplace Control
circuit (left)
K-mapping used to
find the simplified
equation for the
Fireplace Control
circuit (right)

53. Design
Main TOC DE TOC
Final design of the fireplace control circuit

54. Simulation
Main TOC DE TOC
The Fireplace Control project as built and simulated in Multisim.

55. Prototype
Main TOC DE TOC
The breadboarded fireplace control project

56. Date of Birth Project
The objective of the date of birth project was
to create a circuit that instructed a seven
segment display to show a birth date. In this
case, the birthday we used was 06-11-98.
After the circuit was designed and simulated
on Multisim, it was breadboarded to be a
functional circuit.
Main TOC DE TOC

57. Design
Main TOC DE TOC
Truth table used to determine the equations of each circuit

58. Main TOC DE TOC
Circuit designs for each of the seven
segment display segments, using AOI logic,
NAND gates, and NOR gates

59. Simulation
Main TOC DE TOC
The Date of Birth project as built and simulated in Multisim.

60. Prototype
Main TOC DE TOC
The breadboarded Date of Birth project, shown with the date display.

61. 60 Second Counter Project
The purpose of the 60 second project was to
design, simulate, and program a digital timer
that counted from 00 to 59 and repeated,
with a reset button that would set it back to
00 at any given time. Synchronous 74LS163
MSI counters had to be used for the ones
display, and synchronous logic with J/K flip
flops had to be used for the tens display.
DE TOCMain TOC

62. Simulation
The 60 Second Counter project as built and simulated in Multisim.
Main TOC DE TOC

63. Prototype
DE TOCMain TOC
Click above to play. If the video does not play, click here.

64. State Machine Design Project
The purpose of the state machine project
was to design, simulate, and program a
state machine that would display the last 4
digits of a phone number (in this case,7039).
This was connected to a seven segment
display, which cycled through the digits.
Main TOC DE TOC

65. Design
Main TOC DE TOC
Map of the state machine design, used to plan out the circuit

66. Main TOC DE TOC
Truth table and K-mapping of the state machine

67. Main TOC DE TOC
Final state machine circuit design

68. Simulation
Main TOC DE TOC
The State Machine project as built and simulated in Multisim.

69. Prototype
Main TOC DE TOC
Click above to play. If the video does not play, click here.