Engineering Notebook - Pcc

Transcription

Brindlee Mountain Middle School
Brindlee Mountain Mining Solutions, Team #411
1050 Scant City Road
Guntersville, AL 35976
October 27, 2015
Subject: Proposal in response to PAY DIRT, BEST 2015 Design Competition RFP
To: Pay Dirt Design Competition Judging Panel
In response to the subject request for proposal (RFP), Brindlee Mountain Mining
Solutions is pleased to provide the Northeast Alabama Boosting Engineering, Science
and Technology – BEST the requested information for your review.
Brindlee Mountain Mining Solutions is the premier middle school robotics team in
Marshall County, Alabama. Our robots are uniquely designed and qualified not only to
repair mines, but also quickly and safely retrieve valuable ore deposits with no risk to
human miners.
Please accept our attached response providing the data and information describing our
LeNerd III Robot that you will find meets and exceeds the requirements of the PAY
DIRT BEST 2015 Design Contest.
Brindlee Mountain Mining Solutions
Penny Waldrop
Penny Waldrop
Middle School Course Instructor
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Table of Contents
1.0 Introduction
2.0 Brindlee Mountain Mining Solutions Company
3.0 Problem Statement
4.0 Strategies
5.0 Brainstorming & Design Alternatives
6.0 Prototyping, Testing and Evaluation (T&E)
7.0 Final Design & Game Strategy
8.0 Trial Run Performance Results
9.0 Mining & BMMS Safety
10.0 PAY DIRT Correlation to Alabama Mining Industry
11.0 References
12.0 Appendix A: BMMS Team Members
13.0 Appendix B: Mentors and Adult Volunteers
14.0 Appendix C: Meeting Minutes
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15.0 Appendix D: Supporting Documentation - Pictures
Figures & Tables
Figure 2.0: BMMS Organizational Chart
Figure 3.0: Sublevels & Game Field
Figure 3.1: Scoring Rubric
Figure 3.2: Project Schedule
Figure 4.0: Strategy 1 & 2
Figure 5.0: Design Decision Matrix
Figure 5.1: Brainstorming
Figure 6.0: Gear Design
Figure 6.1: Claw Sketch & Final Design
Figure 6.2: Standoff Gear Support & Base Design
Figure 7.0: Final CAD Drawing
Figure 8.0: Practice Field
Figure 9.0: Historical Mine Photos
Figure 9.1: Shop Safety Card
Figure 9.2: BMMS Safety Seminar
Figure 9.3: Board of Education Safety Plan
Figure 10.0: Alabama Coal Mines by County
Figure 13.0: Mentor & Parent Meeting
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1.0
Introduction
The mission of Brindlee Mountain Mining Solutions (BMMS) is divided into four
parts: providing a quality product, ensuring customer satisfaction, promoting a safe
and productive workplace, and striving to protect the environment. The company is
dedicated to building a quality product to meet the needs of the community. By
combining the ideas of the past to spring toward the future, Brindlee Mountain
Mining Solutions will be better able to meet the needs in an ever changing field.
Whether through repair and restoration of mines or the extraction of valuable
resources, the company is committed to making mining a secure, productive, and
environmentally safe operation. In order to make Brindlee Mountain Mining Solutions
a viable option within the mining industry, the company has designed and
manufactured a robot, LeNerd III. After numerous trial and error runs, the final
version of LeNerd III is a diversified piece of technology that can implement
different approaches to various tasks. This proposal serves as evidence of the
engineering practices and procedures in developing LeNerd III. We believe that
LeNerd III, through advanced design and technology, will lead the mining industry
into a bright new future.
2.0
Brindlee Mountain Mining Solutions Company
In order to address the challenges within the mining industry, BMMS was created in
September of 2015 as a division of Brindlee Mountain Robo Squad. It is led by Chief
Executive Officer (CEO), Logan Edmonds and Chief Financial Officer (CFO), Carly
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Webb along with approximately 98 associates, Appendix A. One of the key factors in
the success of BMMS is the ability of the leaders to delegate duties to skilled
colleagues and team members. The company’s initial meeting served as a time to split
into teams and assign workloads. In addition to CEO and CFO, Brindlee Mountain
Mining Solutions is led by the following team leaders: Vice President of Engineering
and Manufacturing, Vice President of Marketing, Vice President of Motivational
Resources, Vice President of Human Resources, Engineering Notebook Chairman,
Web Administrator, Film Crew Director, and Senior Administrative Assistant. Along
with the committed members of our company, we have a much valued relationship
with mentors and volunteers from our community. These individuals have played and
continue to play an invaluable role in the growth of Brindlee Mountain Mining
Solutions. The company’s entire organizational structure shown in Figure 2.0. All
supporting mentors and adult volunteers are shown in Appendix B. Figure 2.1 shows
the BMMS Team at kick-off supporting the decision to enter the PAY DIRT
competition.
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Figure 2.0: BMMS Organizational Chart
Figure 2.1: Kick-Off Day
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3.0 Problem Statement
The leaders of Brindlee Mountain Mining Solutions have studied and analyzed
the problems within BEST Inc. Mining Division. According to our sources, Best Inc.
Mining Division recently acquired an inactive mine. Due to the fact that the
purchased mine was deemed too dangerous for humans and thus
decommissioned, the first order of business must be repairing the mine to create a
safe work environment. It is only when safety has been ensured that we can
implement strategies to garner the lucrative deposits from within the mine.
Brindlee Mountain Mining Solutions have partnered with leaders in the
engineering and technology fields to build a prototype that can make repairs to the
mining structure and extract the valuable commodities from previously dangerous
sites. Our technology must be able to repair a filtration system and broken pipes in
various levels of the mine, but also be able to retrieve valuable commodities from
the different terranean levels. The game “Pay Dirt”, consists of building a robot to
repair the mine and to extract materials from within. The dimensions of the robot
are set to be no larger than 2 cubic feet, or 24 cubic inches. The weight of the
robot was limited to a maximum weight of 24 pounds. The number of required
drivers on game day is based on the number of team members present.
Brindlee
Mtn. Mining Solutions will bring no more than nine team members to the
competition, therefore the minimum number of drivers is five. The materials used in
the construction of LeNerd III are limited to the items provided in the “Returnable”
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and “Consumable” kits, along with any exceptions indicated in the generic rules.
The game field, Figure 3.0, is made up of four quadrants, referred to as shafts,
arranged in a 24’x24’ square. The shafts are arranged radially, and are divided into
four levels: Ground Level and three Sublevels. The robot (LeNerd III) will begin on
ground level where the Commodity Scoring Bins and Spare Parts Rack are located.
LeNerd III will then proceed to Sublevel 1 to make repairs and collect coal and iron
deposits. LeNerd will descend to Sublevel 2 to retrieve copper and mend a broken
pipe. The final phase will be to descent to Sublevel 3 to gather crystals and core
samples. Scoring guidelines or rubric were determined by BEST Inc. Mining Division
and can be viewed in Figure 3.1.
BMMS developed a schedule in Figure 3.2 for project management and engineers
to use to determine and assess risk when meeting PAY DIRT deadlines.
4.0 Strategies
Brindlee Mountain Mining Solutions, along with a team of subject matter experts,
(SME) devised four potential strategies in order to make needed repairs in the mine
and collect valuable ores, Figure 4.0 & Figure 4.1.
After much study and deliberation, Brindlee Mountain Mining Solutions had
determined that using strategy number one in the seeding phase is the most
advantageous choice. This strategy was chosen due to the fact that it will earn the
most points in the early part of the maneuvers. Given the three minute time
constraint, collecting as many points as early as possible should allow the team to be
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successful even if we do not complete all tasks and collect all commodities.
Figure 3.0 Sublevels & Game Field
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Figure 3.1 Scoring Rubric
Since Northern Alabama is where Redstone Arsenal (RSA) is located, home to
some of the U.S. Army’s largest commands to include: material, research and
development, missile and space, as well as test facilities. NASA and the Marshall
Space Flight Center are also located on Redstone Arsenal. BMMS researched the
uses of robots in different military scenarios, especially NASA, as a starting place
for early BMMS brainstorming ideas. The PAY DIRT competition and the
associated research, has helped BMMS and other Brindlee Mountain Middle School
students learn that the brainstorming, planning, designing, building and all the steps
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to complete LeNerd III is exactly the same as NASA does for their robots. The
documentation that goes along with the technical data i.e. project schedule,
marketing etc. is also a large part of making the overall project successful.
Figure 3-2: Project Schedule
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5.0 Brainstorming & Design Alternatives
The company engineers brainstormed with other colleagues and team
members to evaluate designs, then used a decision matrix to analytically help
determine which ideas would be the best choice for the team. The decision matrix
used a weighting factor to weigh certain critical decisions more than others. The
decision matrix and brainstorm ideas that were used are shown in Figure 5.0 and
5.1 below.
Figure 5.0: Design Decision Matrix
Using the matrix, five critical decisions were made which helped to speed up the
design process. The matrix indicated that using wood wheels versus acrylic wheels
for the front wheels was a better option for the company because of the ease of
manufacturability between the two designs.
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The decision of the arm was verified by the matrix because of its ease of placing
game pieces on the game field. A golf ball idea was considered for the back wheel
but due the ease of maneuverability, the skate wheel was chosen.
Figure 5.1: Brainstorming
6.0 Prototyping, Testing and Evaluation
The gear design was not included in the decision matrix because only one design
existed. Two gears were used, one gear mounts to the motor drive shaft and the
other gear mount to the standoffs that will operate the arm. The gear blueprints were
printed off from https://woodgears.ca/gear_cutting/template.html and was critical in
cutting out the teeth. A picture of the final product next to the gear template from the
website was shown in Figure below.
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Figure 6.0: Gear Design – Idea to Final Product
The claw was a critical part of LeNerd III. Several claw designs were sketched and
constructed in a similar fashion to the other parts. A sketch of a claw design was
shown in Figure 6.1 below. The design allows the claw to grip all minerals on the
playing field. Rubber tubing was added to the acrylic claw to aid in the grip after the
initial testing process to add stability to the claw grip. Once the rubber tubing was
added, the claw could grip all minerals and replacement parts without dropping them.
Figure 6.1: Claw Sketch & Final Design
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Figure 6.2: Standoff Gear Support & Base Design
A 1:1 scale prototype of different components was created and put through a
series of tests before the actual robot was completed. The prototype performed well
when driven over obstacles that simulated the playing field. The wheel design worked
well when put to the game field test. The wheels had sufficient traction to make it over
the tunnel thresholds. Once prototype tests were complete, the team felt we had
sufficient information to move forward with the actual robot model.
7.0
Final Design
Figure 6.2 and Figure 7.0 show other methods of engineering used to go from the
brainstorming/prototype phase of design to final product. The Computer Aided
Drawing (CAD) in Figure 7.0 allowed for more precise and detailed information for the
manufacturing team to use in their final build. Up to this point in the PAY DIRT
project, BMMS Team members have used several key skill sets such as logistics;
team building; brainstorming/engineering; manufacturing; marketing and various
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documentation types. BMMS has also learned the pros/cons of prototyping and the
impact to schedule, as well as the importance of understanding all the customer
requirements.
The final design of LeNerd III encompassed all the expertise of the BMMS Team.
LeNerd III’s unique rubber wrapped claws will not only retrieve all minerals, but the
golf ball drive will show unmatched maneuverability.
Figure 7.0: Final CAD Drawing
The final design also includes spare components for changes to the configuration
which is another unique capability that makes LeNerd III more desirable and
marketable.
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LeNerd III final physical specification is as follows:
Size:
Width = 17 inches (in.)
Length = 19 inches (in
Height = 19 inches
Weight:
19 pounds (lbs.)
No. of Wheels: 3
No. of Arms:
8.0
1
Trial Run Performance Results
Brindlee Mountain Mining Solutions constructed the practice field with the same
dimensions as defined in the game specific rules for testing purposes as shown in
Figure 8.0.
Figure 8.0: Practice Field
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The LeNerd III was successful in constructing in all tunnel, as well as making both
repairs in the mine. Drivers were able to retrieve all minerals but had trouble with the
core sample and the crystal from sublevel three. All drivers feel that with practice this
will be doable. All drivers were able to practice on the company mock playing field.
The playing field has all of the in game components including all sublevels with
minerals and crystals.
9.0
Mining & BMMS Safety
Alabama has a rich history of coal mining, both surface and underground.
Mining has always been a very dangerous occupation as shown in the pictures in
Figure 9.0.
Figure 9.0: Historical Mine Photos
Throughout the years the mining industry has sought solutions to reduce mine
fatalities while maintaining production levels. BMMS uses several engineering
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methodologies to assist our customers by promoting solutions to increase mine
safety. Our customers indicate that BMMS is first in the industry in engineering,
brainstorming, drafting, prototype development and testing to prove that unmanned
machines or robots like LeNerd III will one day revolutionize safety in the mining
industry and other high risk occupations.
Robots like LeNerd III can perform numerous tasks, tests and human tasks in
the mining industry. Robots are already being utilized in several areas of
manufacturing and production, with many experiments in robotic mining being tried
today.
All team members of BMMS on the LeNerd III project were briefed on the proper
use of safety goggles, machinery safety, electrical cord safety, fire extinguisher
locations and required adult supervision to name just a few topics. The shop safety
card shown in Figure 9.1 shows additional rules displayed in all work areas, as well
as the manufacturing division specifically completed safety training with the
agriscience instructor, Mr. Brett Thrower, shown in Figure 9.2.
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Figure 9.1: Shop Safety Card
Figure 9.2: BMMS Safety Seminar
Brindlee Mountain Middle School meets and exceeds the State Board of
Education Mandatory Safety Regulations, Policies and Actions, as listed in Figure
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9.3 & Figure 9.4.
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10.0 PAY DIRT Correlation to Alabama Mining Industry
Historically, Alabama has not been known for mining numerous varieties of ore.
However, Alabama does have a rich history of coal mining, both surface and
underground. The coal mining industry expanded the state’s economy from a
traditional agricultural base(1) and spurred the development of Alabama’s largest city,
Birmingham (2).
1
“Coal Mining”. Encyclopedia of Alabama. 24 October 2015. Web.
2
“10 Biggest Cities in Alabama: How Well Do You Know the Heart of Dixie?”. 24 October 2015. Web
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Even though the coal mining industry has waned in the state, its effects can still be
seen. The coal power industry is historically very strong in Alabama, ever since the
Tennessee Valley Authority built coal-fired power plants in Alabama on an
unprecedented scale in the 1950's and 60's. In subsequent decades, the state's coal
power industry continued to grow: 46% of the state's coal power capacity has been
built since 1970.
Today, Alabama ranks 15th largest in the U.S. for coal production. The counties
surrounding Marshall County where BMMS is located have several active coal mines
where to date for 2015, over 8 million tons of coal have been mined, Figure 10.0.
Alabama had 45 coal-fired generating stations in 2005, with 12,684 MW of capacity representing 38.2% of the state's total electric generating capacity and making
Alabama the 11th biggest coal energy producing state in the U.S.
The discovery of coal along Alabama’s rivers can be traced back to 1815 (3).
Many early accounts have indicated that the people from the central counties of Bibb,
Blount, Jefferson, Shelby, Tuscaloosa, and Walker were collecting and selling coal in
the 1830’s. During the 1840’s, four major coal fields were discovered in the the state the Warrior, the Cahaba, the Coosa, and the Plateau (4). These deposits lie at at the
farthest tip of the Appalachian coal field. With the discovery of these fields, the first
large scale coal mining operation began in the Cahaba field in 1856.
3
4
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These early coal miners were dealt the task of entering these dangerous, dark
mines equipped with rudimentary tools, their lunch, drinking water, and a kerosene
lamp. Miners often worked on their knees or lying on their sides to prepare blast
holes. Once dug out, these holes were loaded with black powder charges to blast the
coal from seams within the shafts. When the coal was loosened from the seams,
miners loaded the lumps into trams pulled by mules. These trams would be pulled to
the surface and weighed. Credit was given to the miners for the amount of tonnage
they could draw from the mines. Unfortunately, they often had to pay company stores
for their tools and housing before drawing any actual pay (5).
The demand for coal grew dramatically during the Civil War period. Coal powered
the machines and fueled the forges and mills that produced weapons, ammunition,
railroads, and ironclad ships for both the Confederacy and the Union (6). With the
newly constructed Alabama and Tennessee River’s railroad, coal could be taken from
the Cahaba fields to a foundry in Selma. Rail lines connected Selma to Mobile, where
steamships could deliver coal to other key Confederate cities. The Union soon
realized that one way to defeat the Confederacy was to stop their ability to
manufacture arms. In the spring of 1865, a series of cavalry raids was proposed by
General Ulysses S. Grant into central Alabama.
Day, James Sanders. “Diamonds in the Rough: A History of Alabama’s Cahaba Coal Field”. Ph.D. Diss.
2015.
6 5 Day, James Sanders. “Diamonds in the Rough: A History of Alabama’s Cahaba Coal Field”. Ph.D. Diss.
2015.
6 Barnes, M.Lynn and Tucker, Spencer C. American Civil War: The Definitive Encyclopedia and Document
Collection, p. 390. . Santa Barbara, CA. 2013.
5
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The goal was to target valuable coal mines, iron works, ammunition manufacturers,
and other industries. General James H. Wilson, led approximately 13,500 cavalry
troops, the largest raid of the American Civil War (7), in a largely uncontested swipe
from west to east across the central portion of the state. His attacks were quick and
largely targeted military production sites. Wilson’s raids were considered a huge
success. He captured almost 6000 enemy prisoners and destroyed four major
Confederate industrial centers. His attacks on the coal mines and foundries destroyed
the state’s ability to supply the Confederacy with military supplies and ordinances.
It wasn’t until mid-1870 that the coal mining industry began to see a reemergence.
The completion of the L&N Railroad, which connected the Alabama River to the
Tennessee River, made it possible to join the iron ore deposits of Red Mountain with
the coal from the Cahaba field and strengthen iron production in the state. Oxmoor
Furnace, owned by Daniel Pratt and Henry DeBardeleben, was the first effort to
rebuild the industrial economy of post war Alabama.
Through the need to make the production of iron more cost efficient, ironmaster,
Levin S. Goodrich and the Eureka Mining and Transportation Company determined
that coke - a light, porous by product of baked coal, was a better fuel for iron
production.
7
Hebert, Keith S. “Wilson’s Raid”. University of West Georgia. Web.
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Goodrich experimented with coal from various fields and found that the Warrior field
coal was the most suitable for making coke. (8)
DeBardeleben, co-owner of the Oxmoor Furnace, joined with Truman Aldrich, and
James Sloss to form the Pratt Coal and Coke Company. This group opened several
mines and built the Birmingham and Pratt Mines Railroad to link supplies of coke to
the furnaces of Birmingham. These mines fed the Birmingham steel industry.
Investors of the L&N railroad witnessed the potential of the Jones Valley area,
located in the southernmost valley of the Appalachian mountain chain. Situated in the
center of the coal fields of Alabama, this area was viewed as a potential economic hot
spot. The Elyton Land Company was organized with the sole purpose of building a
new city in this area. The president of the company, James R. Powell, who had
recently visited England, suggested the name “Birmingham” due to the connection of
the coal/coke and iron ore industries in the area (9).
The city was chartered in 1871. Powell became known as the “Duke of
Birmingham”. In 1878, Alice Furnace was opened for the large scale production of pig
iron. Construction of Sloss Furnace began in 1881 followed by the Tennessee Coal
and Iron Company facilities. The L&N Railroad aided these new companies by
investing and offering special freight rates.
8
9
“Birmingham”. Encyclopedia of Alabama. 25 October 2015. Web.
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As a result, the production of pig iron increased tenfold in ten years. The seemingly
magical rise of the city from nothing to world player would earn the city the nickname
the “Magic City”.
Birmingham continued to grow, weathering several setbacks between 1880-1929.
However, the stock market crash of 1929 shut down U.S. Steel factories in the city.
For eight years, the city struggled to retain its economic identity. However, it wasn’t
until the outbreak of World War II that Birmingham began to see a reprieve from their
economic crunch. World War II brought Birmingham alive and made them an
important part of the nation’s arsenal. The production of steel fueled by the iron and
coal deposits of the area brought the city into the national spotlight.
After World War II, the U.S. saw a decline in the use of railroads. This resulted in a
decline in Alabama’s coal industry as well. After the war, Birmingham diversified its
economy by bringing in over 140 new industries that were not solely dependent upon
coal or iron ore. Today, Birmingham is a modern city that has an economy based on a
variety of industries from medical research to banking, and yes, steel production still
plays a vital role in its economy (10).
In the state of Alabama, coal production bottomed out in 1954.
10
“Birmingham”. The Encyclopedia of Alabama. 25 October 2015. Web.
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However, in subsequent decades, largely due to the coal power industry initiated by
the Tennessee Valley Authority in the 1950’s and 1960’s, the coal mining industry
rebounded to an all-time peak production of twenty-nine million tons in 1990. The
most current production rates have Alabama producing roughly nineteen million tons
of coal a year making it the fifteenth largest producer of coal in the United States (11).
As with any industry, there will always be periods of boom and those of bust.
However, the mining industry can only be a player in the economic game of a state if
the minerals or ore deposits are present in the geographical location. Alabama owes
much of its success to the discovery of the coal fields all those years ago.
Whether to heat an individual’s home or to power the production of a whole
industry, the state’s future would have been vastly different had coal deposits not
been found in the state.
11
“Alabama and Coal” Coal Issues. 26 June 2015. Web
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Figure 10.0: Alabama Coal Mines by County
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11.0 References
Alabama State School System Safety Plan Format and Individual School Safety Plan
Format, 26 October 2015. Web.1
Barnes, M. Lynn and Tucker, Spencer C. American Civil War: The Definitive
Encyclopedia and Document Collect. Santa Barbara, CA. 2013.
“Birmingham”. Encyclopedia of Alabama. Web.
“Coal Mining”. Encyclopedia of Alabama. Web.
Herbert, Keith S. “Wilson’s Raid”. University of West Georgia. Web.
Day, James Sanders. “Diamonds in the Rough: A History of Alabama’s
Cahaba Coal Field.” Ph.D. Diss 2015.
“10 Biggest Cities in Alabama: How Well Do You Know the Heart of Dixie?”
Newsmax.com. Web.
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12.0 Appendix A – BMMS Team Members
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13.0 Appendix B: Mentors and Adult Volunteers
Mr. and Mrs. John Robles
Mr. and Mrs. Phillip
Edmonds Mr. and Mrs.
Bryan Pearl
Mr. and Mrs. Mike Little
Mr. and Mrs. Jason Vaughn
Ms. Ashley McDaniel (faculty)
Mrs. Suzanna Williams (faculty)
Mrs. Lisa Embry (faculty)
Mrs. Debra Williams (faculty)
Mrs. Penny Waldrop (faculty)
Mr. and Mrs. Joey Brown
Mr. George Williams
Mr. and Mrs. Charles
Ary Mrs. Peggy Hyatt
Mr. and Mrs. Ricky Phillips
Mr. Sean Gough
Mr. Steve and Kristina Crowder
The instructor of the robotics course, Mrs. Penny Waldrop held a mentor and parent
meeting as shown in Figure 13.0 below.
Figure 13.0: Mentor & Parent Meeting
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14.0 Appendix C: Meeting Minutes
Booth Team:
● September 28, 2015: Better organization was considered in the building
process. Some students suggested we inserted shelves.
● October 1, 2015: Different prizes for the booth were discussed.
● October 8, 2015: Brainstormed the concept of the booth.
● October 16, 2015: Building began.
● October 20, 2015: Began painting the booth.
● October 24, 2015: Began staining the booth.
Presentation/Marketing Team:
●
●
●
●
October 3, 2015: Different uniforms for boys and girls was suggested.
October 7, 2015: Decided to start using Nearpod instead of using Powerpoint.
October 8, 2015: They decided to have an administrative assistant.
October 10, 2015: Each judge will have an iPad, the administrative assistant will
pass out the iPad.
● October 17, 2015: Practiced speech
● October 23, 2015: They made up the game for the booth.
Notebook Team:
● September 30, 2015: Discussed the research paper & researched mining in
Alabama
● October 7, 2015: Assigned notebook sections & began editing process
● October 10, 2015: Researched different mining tools, inventions, and famous
people in the mining industry.
● October 22, 2015: Discussed research paper; edited material from other team’s
notebook compilation.
● October 24, 2015: Checklist for final notebook requirements and final editing.
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Film Team:
● October 3, 2015: Film Crew met from 9-12 talking about how to put the pictures
on the computer.
● October 10, 2015: Film Crew met from 9-12 taking pictures of booth and spirit.
● October 17, 2015: Film crew helped draw plans for the robot.
● October 24, 2015: Film crew downloaded pictures, and took pictures of the field.
Spirit Team:
● October 3, 2015 Spirit met from 9-11 making signs, discussing noise maker
ideas, and deciding on pom poms.
● October 10, 2015 Spirit finished making signs for competition.
● October 23, 2015 Spirit met from 9-11 making prizes for booth.
● Every Wednesday and Thursday spirit met to discuss cheers, colors for shirt, gift
ideas for other coaches, slogans, and sign ideas.
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15.0 Appendix D: Support Documentation - Pictures
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Engineering Notebook - Pcc

Transcription

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