Eric Cutright, SM Troop 1028/9, June 2020...Just Roll With It - Engineer a BB-8 Droid (Requirement 1) • Engineering Approach to Problem Solving (Requirement 5) • Day 2 Homework:

SCOUTS BSA: TROOP 1028/1029

Engineering Merit BadgePART TWOEric Cutright, SM Troop 1028/9, June 2020

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Engineering Merit Badge VAHC Online Class June 2020

Day 1 – Overview of Requirements, Introduction to Engineering, Systems Engineering Approach to Problem Solving (5)

– Homework 1: Just Roll With It - Engineer a BB-8 Droid !! (1)

Day 2 – Types of Engineers (3), Engineering Design– Showcase: Scout homework pictures– Homework 2: Best Patrol Gear Ever – Engineer a Portable “Bridge” !! (5b)

Day 3 – Triumphs/Disasters in Engineering (2), Professional Engineers (7), Code of Ethics (8), Computer Design (2 - if time)

– Showcase: Scout homework pictures– Homework 3: Yo! Don’t be an Energy Hog !! (6b, plus your choice of another #6)

Day 4 – Careers in Engineering (9), Engineer Interview (4) (yikes, it’s me!)– Showcase: Scout homework pictures– Homework 4: Whoa, What a Cool / Fun Career !! (9)

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The Plan for TodayPart Two – Engineers Rock !

• Types of Engineers (Requirement 3)

• Review of Day 1 HomeworkJust Roll With It - Engineer a BB-8 Droid (Requirement 1)

• Engineering Approach to Problem Solving (Requirement 5)

• Day 2 Homework: Best Patrol Gear Ever – Engineer a Portable “Bridge” !! (Requirement 5b)

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Types of Engineers

(Requirement 3)

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Engineering. For Life.TM


Types of Engineers: Five Core Disciplines

• Civil Engineering– Design roads, railways,

bridges, dams, water supply systems, and sewage systems

– Apply geology and physics

• Chemical Engineering– Apply chemistry to industrial

processes – often to make something new and more environmentally sound

– Develop household products

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San Francisco-Oakland Bay Bridge:Old and New (2013)

Chemical Plant


Types of Engineers: Five Core Disciplines, con’t

• Electrical Engineering– Design power distribution

systems, electrical machinery, communications, computer systems, control systems, electronic devices

– Apply physics of electricity and magnetism

• Mechanical Engineering– Design wide array of

mechanical devices– Apply physics of motion,

load bearing, forces

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Automotive Design

Advanced Electronics


Types of Engineers: Five Core Disciplines, con’t

• Mining and Metallurgical Engineering– Work to make mining and

refining metals more predictable, safer, and less expensive

– Create new alloys to meet specific needs (hard, soft, weather-resistant, etc.)

– Apply principles of materials science – study of the properties and behavior of solids, liquids, and gases

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Steel Manufacturing Plant

Mining Machinery


Types of Engineers: Specialized Disciplines

• Aerospace Engineering– Design airplanes and space

vehicles, including high-powered engines and aerodynamic design principles

– Apply physics of motion, load bearing, forces

• Agricultural Engineering– Design farm and food-

processing equipment and develop systems for irrigation, drainage, and waste disposal

– Develop new ways to grow crops more efficiently

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AgriculturalMachinery

Advanced Aircraft


Types of Engineers: Specialized Disciplines, con’t

• Architectural Engineering– Work with architects on

designing buildings and the systems that make them functional (elevators, HVAC)

– Can also help design building to resist natural forces

• Bioengineering / Biomedical Engineering– Combines principles of biology

with engineering– Develop medical devices and

prosthetics

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Gel-based MedicalDrug Delivery

Rotating Skyscraper



• Ceramic Engineering– Work with processes that

convert clay and nonmetallic minerals into ceramic products

– Ceramics are extremely heat resistant and were used for the space shuttle tiles

• Computer Engineering– Develop computer-related

hardware and software such as memory systems, CPUs, graphics cards, and advanced computer architectures

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Space ShuttleRe-entry Tiles

Advanced Computers



• Environmental Engineering– Work to reduce man’s effects

on the environment by improving quality of the air, water and land

– Develop systems to reduce pollution and repair damage

• Industrial Engineering– Design manufacturing plants

and processes for maximum efficiency and lower costs of production

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Water Treatment Plant

Industrial Plant



• Manufacturing Engineering– Develop high-speed automated

machinery and robotics to yield high quality products from a manufacturing plant

• Marine/Naval Engineering– Design ships and ocean-based

structures to work in harsh ocean environments and resist weather, salt, water currents, waves, and animals

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Manufacturing Plant

Ship Design



• Material Engineering– Work with all kinds of raw

materials, both natural and synthetic, to create new materials that meet specific needs for strength, flexibility, durability, etc.

• Nuclear Engineering– Design systems that operate

with radiation, including power plants, medical instruments, and weapons

– Must design shielding and protection systems

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Material Flammability

Nuclear Power Plant



• Ocean Engineering– Develop ways to harvest food

from the ocean or harness energy from waves

– Develop new methods and machines to allow humans to work and live beneath oceans

• Petroleum Engineering– Specialized chemical engineers

who develop efficient processes and machinery to extract crude petroleum from the earth

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Ocean PipelineDesign

Off-Shore Oil Rig



• Software Engineering– Apply principles of

computer science to design complex software systems including control/monitoring systems and of course video games

• Systems Engineering– Look at processes from a

“big picture” systems viewpoint to design large, complex engineering systems to meet customer requirements

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Tactical Heads-Up Display


Day 1 Homework: Just Roll With It -

Engineer a BB-8 Droid (1)

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Star Wars. For Life.TM


Day 1 Homework: Just Roll With It - Engineer a BB-8 Droid

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• Define the set of requirements– What functions should BB-8 perform?– What features/technology will he need to perform these

functions?

• Make a rough design schematic– What do you think BB-8 would look like inside?– What makes him move?– His outside is totally smooth – how does he get traction?– How would you control his movement?– How does his head stay on top?

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BB-8. For Life.TM



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Day 1 Homework Highlights: Just Roll With It - Engineer a

BB-8 Droid(insert pictures received)

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Day 1 Homework Concept Review: Just Roll With It -

Engineer a BB-8 Droid (1)

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Engineering a BB-8 Droid:“Real” BB-8 Design

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Spin Motor (rotate/turn)

Rotate Motor(move Forward/ Reverse)

Rotate Motor(move Forward/ Reverse)

Spin Motor (rotate/turn)

Segway-style Gyro Base

Head Control


Engineering a BB-8 Droid: Key Components

• Gyroscope:– Measures orientation– Gimbals set the planar axes– Rotor spins on spin axis, unaffected

by tilting/rotation (conservation of angular momentum)

– Not affected by magnetic forces

• Common uses:– Internal navigation systems– Stability control (e.g. helicopters)– Direction tracking in mining– Replacement for magnetic

compasses

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• Accelerometer:– Device measures acceleration– Allows sensing of orientation– Senses force direction and

magnitude

• Common uses– Monitor vibration in rotating

machinery– Internal navigation systems– Phones and cameras to always

display screen upright– Trains to detect movement and safe

stopping

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• Bluetooth Link:– Bluetooth is a wireless technology standard for exchanging data over

short distances– Bluetooth operates at frequencies between 2400 and 2483.5 MHz

(including guard bands 2 MHz wide at the bottom end and 3.5 MHz wide at the top)

– Bluetooth uses a radio technology called frequency-hopping spread spectrum. Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels. Each channel has a bandwidth of 1 MHz.

– Bluetooth is a packet-based protocol with a master-slave structure. One master may communicate with up to seven and all devices share the master's clock. Data exchange is based on the basic clock, kept by the master, which ticks at 312.5 µs intervals.

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• Control Application (Android/Apple):

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Engineering a BB-8 Droid:Taking Him Apart

• Teardown Video: http://www.cnet.com/news/sphero-bb-8-teardown-reveals-the-cool-robot-tech-inside-this-fun-star-wars-toy/

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Engineering a BB-8 Droid:Internal View (Sphero Model)

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Engineering a BB-8 Droid:All The Parts !!

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Design Challenge Prize: Play with BB-8 !!(if only we were meeting in person )

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Systems Engineering Approach to Problem

Solving (Requirement 5)

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Problem Solving. For Life.TM


Systems Engineering Approach to Problem Solving

1. Make a plan showing approach, resources, required tools, and schedule

2. Describe the project requirements3. Plan the project’s activities and task schedules4. Conduct research – get ideas5. Develop the best ideas for alternative solutions6. Analyze the best ideas and compare them7. Select the best idea8. Perform the construction or solution of the project9. Check the solution

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Engineering Design – Key Highlights and Skills

• Requirements-based design is a critical key– Be sure you have comprehensively specified what your system

is supposed to do BEFORE you design it– Remember, a wrong requirement means a wrong design !

• Break a big problem into small pieces– Don’t get overwhelmed, manage a complex design by

“compartmentalization” into small solvable parts – Engineering design is an iterative process

• Some key skills (besides all the math and computers): drawing, organization, record-keeping, written and spoken communication, teamwork

• Engineers use lots of tools (especially computers!)

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Day 2 Homework: Best Patrol Gear Ever – Engineer a

Portable “Bridge” !! (Requirement 5b)

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Epic. For Life.TM


Requirement 5 Homework

5. Do ONE of the following:a. Use the systems engineering approach to make step-by-step

plans for your next campout. List alternative ideas for such items as program schedule, campsites, transportation, and costs. Tell why you made the choices you did and what improvements were made.

b. (Mr. Eric’s homework) Make an original design for a piece of patrol equipment. Use the systems engineering approach to help you decide how it should work and look. Draw plans for it. Show the plans to your counselor, explain why you designed it the way you did, and explain how you would make it

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Mr. Eric’s Portable “Bridge”

• When I devised this project many years ago, I had some lofty and epic goals– Give it a truly awe inspiring name that everyone would instantly

identify with, and be inspired to build one for themselves– Create a cool and helpful piece of Patrol gear that could be used

on EVERY type of Troop outing– Make something so utterly and epically cool that Scouts would

be arguing over who gets to carry it in their daypack on every outing

– Intrigued yet? Here it is !!!

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Crazy. For Life.TM


Princess Pony Diving Board: Building Overview and Parts

• “Required” parts (think why I would suggest these)– Three 8 foot bridge sections plus 2 yardsticks– 2 small clamps, 2 large clamps, 20 feet painter’s masking tape– 200 feet of string, scissors, 1 Princess Pony, optional: up to 50 LEGO pieces of your choice

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Princess Pony Diving Board: The Rules

• If you don’t have the exact part, be creative and use what you have at home – don’t buy anything, and don’t exceed my list !

– If you have nothing, email me for help (CC your parents)• You are making a single-anchor point suspension bridge

(a.k.a. diving board) that must be attached to the table (without damaging or modifying the table)

• Nothing can touch the floor or be tied to the ceiling/walls or anything in the room

– Exception: can tie to anything on the materials list or any part of the table• No modification of parts (can’t drill holes, break, etc.)

– Exception: can cut string and tape as desired• Load must be placed on the very furthest “floating” end of your bridge

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Princess Ponies. For Life.TM


Princess Pony Diving Board: Competition Judging

• Diving Boards judged on two/three measurable criteria– Length – measure in inches from nearest edge of table– Load Bearing – two ways to measure how much your diving

board can support without breaking or touching the floor:• Record the load weight - measure in ounces, pounds, # ponies, #

elephants, or tons depending on how strong your final bridge is made !

• Record the downward deflection in inches from starting point

• Since everyone will likely have variations in materials, this is just for FUN and you are NOT competing against each other

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Princess Pony Diving Board: Mr. Eric - Why? Why? Why?

• Mr. Eric, why are we doing this?– Duh, a Princess Pony diving board is obviously the single most

important piece of Patrol equipment on ANY Troop outing!

• But hey Mr. Eric, I’m allergic to Princess Ponies (or possibly you don’t have one at home – oh no!)– Read requirement 5b and propose an alternative project to me via email

(CC your parents), OR– Read requirement 5a, propose a project to me via email (CC your

parents), and do that instead

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Duh. For Life.TM


Princess Pony Diving Board: Mr. Eric - Why? Why? Why?

• Mr. Eric, why are we doing this?– Duh, a Princess Pony diving board is obviously the single most

important piece of Patrol equipment on ANY Troop outing!

• But hey Mr. Eric, I’m allergic to Princess Ponies (or possibly you don’t have one at home – oh no!)– Read requirement 5b and propose an alternative project to me via email

(CC your parents), OR– Read requirement 5a, propose a project to me via email (CC your

parents), and do that instead

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Duh. For Life.TM


Inspiration: Old “Bridge” Building Competition Results from T1028

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Princess Pony Diving Board Competition Results – 2nd (tie)

• Second place (tie) – Cobras– Length = 103” (3rd), Load Bearing Deflection = 10” (2nd)

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Princess Pony Diving Board Competition Results – 2nd (tie)

• Second place (tie) – Wolverines– Length = 152” (2nd), Load Bearing Deflection = 24” (3rd)

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Princess Pony Diving Board Competition Results – 1st

• First place – Mountaineers– Length = 203” (1st), Load Bearing Deflection = 4” (1st)– Won trivia question and key prize of 1 floor support brace

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Day 2 Homework: Princess Pony Diving Board

• The instructions and sheet to record your homework can be found in two ways:– Navigate from our home page, via “Earning Merit Badges”

drop down: www.troop1028.org

– or go directly there: www.troop1028.org/engineering-merit-badge.html

• File: – Bridge Building Requirement 5b Homework Day 2.pdf

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End of Day 2 !!

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Yoda. For Life.TM

Documents

Eric Cutright, SM Troop 1028/9, June 2020...Just Roll With It - Engineer a BB-8 Droid (Requirement 1) • Engineering Approach to Problem Solving (Requirement 5) • Day 2 Homework: