DEVIL DOGS

DEVIL DOGSMHSCaptain: Zach WilkieKalee BarbinaBen GreenJustin HamilRobert KishChris WaldronCoach: Dean Wadd

CRT Engineering:

Carl Fechko

Assistant: Charlie Persensky

Assistant: Ray Wetzel

Assistant: Pat Longano

CRT Trades:

Scot Fyffe

Tom Parr

Keith Paschal

Greg Ubic

Madison Local Schools• The Madison Local School District has a student population of

3,700.  The student body is housed in five instructional facilities:  three elementary schools (K-5); one middle school (6-8), and one high school (9-12).  Vocational students attend Auburn Career Center.  Pre-school for young children, after-school Latchkey, and Adult Basic Literacy Education and GED programs are housed at the district's Memorial Complex.

• The mission of the Madison Local School District is to provide educational opportunities with expectations for students to achieve and realize their full potential like Industrial Technology and Project Lead the Way classes. Accordingly, the Madison Local Board of Education is committed to providing an exemplary program of education in which students expect, believe and achieve.

• Information from: http://www.madisonschools.net/

Component Repair Technologies

• Component Repair Technologies, Inc. is a leader in aerospace component repairs. They provide high quality component repair to airlines, military, and land & marine turbine engine operators around the world.

• CRT is a privately held independent company located in Mentor, Ohio in a modern 115,000 sq. ft. facility. They offer a wide range of component repair capabilities on General Electric, Pratt & Whitney, CFM, Honeywell, and the IAE family of engines.

• CRT is proud to be a leading supplier to the world-wide aerospace market

– Information from: http://www.componentrepair.com/

DEVIL DOGS’ Bios

Zach Wilkie (12th) is interested in careers in engineering and manufacturing – friends say he should be a bouncer. In his free time, he likes building things and going to a shooting range. He is involved because he was recommended by his Industrial Technology teacher and wanted hands-on experience in engineering and manufacturing.

DEVIL DOGS’ Bios

KaLee Barbina (9th) is interested in careers as a biomedical engineer or a doctor – friends say she should be a psychologist. In her free time, she likes singing and cooking. She is involved in science club because it helps her prepare for jobs with intense work loads and enhances her math and science skills.

DEVIL DOGS’ Bios

Ben Green (11th) is unsure about what career interest he has at this point – friends say he should be a comedian, actor, or band director. In his free time, he likes building with Legos, video games, and Dungeons & Dragons. He is involved because it would give him good experience in engineering & design and help decide what he would like to do in the future.

DEVIL DOGS’ Bios

Justin Hamil (11th) is interested in careers in psychology - friends say he should be a pilot. In his free time, he likes playing video games, fishing and going to the shooting range. He is involved in science club because he wanted to explore career options.

DEVIL DOGS’ Bios

Robert Kish (10th) is interested in careers in architecture – friends say he should be a swimmer. In his free time, he likes building things with Legos, designing buildings in AutoDesk Revit. He is involved because his friends needed someone who was good with AutoDesk Inventor.

DEVIL DOGS’ Bios

Chris Waldron (11th) is interested in careers in robotic engineering – friends say he should be in construction or a lumberjack. In his free time, he likes to read science fiction or fiction and play video games. He is involved because Robobots fits with his career interest and he wanted hands-on experience.

RoboBot Goals

“FLIP & RIP”

• Slide under the opponent with a sloped front and rear in forward or reverse directions

• Tear the opponent apart with 2 saw blades from either direction while the opponent is on top

Team Process

• Brainstorm• Develop a Time Line• Preliminary Designs• Assemble Chassis & Power Train• Specifications & Testing• Final Designs of Fabricated Parts• Final Assembly Design• Fabricate Parts• Assemble Weaponry & Armor• Problem Solving Steps• Driver Training

Brainstorming

As we progressed in the design and construction of our Robobot, we changed our ideas several times. We went from having a square bot with four wheels and saw blades on the sides with spikes on the back to our idea of a square bot sloped in front and back with two wheels in the middle with 2 saw blades on the top

We chose this design because it has the best potential. According to research, this type of design had success. Plus, we think design also has a cool look too.

Time Line2/16 – 2/23• Design the robot more thoroughly - What do we expect the robot to do?• speed – gear ratio, speed vs torque, maneuverability, how many wheel drive, etc…• Weapon performance – RPMs, torque, clearance, start/stop etc…• Body design – armor, symmetrical body design, size…• Is it all realistic with the weight requirements?  Nail down the details. • Create the specs necessary to create the design.  How will it all fit together?• Create detailed blue prints for each piece requiring fabrication.• List the material, fab technique, estimated weight, dimensions, attachment technique.• Spec sheet for each item that will be purchased (not fabricated)• List source, price, # required, est weight, picture etc…

 

2/24 – CRT meeting• Review design and specs already created and make changes as needed.

 

2/25 - 3/7• Revise drawings and spec sheets as necessary• Create assembly drawings of multiple fabricated/purchased components to show how things will assemble and

verify clearances.

Time Line3/8• Finalize the design.• All spec sheets, blue prints and assembly drawings are completed and consensus is reached within the group

that the best possible design has been achieved.• Write a build summary – basic explanation or instructions for manufacture and assembly of the robot.• Detail out what order things need to be done in order to keep the build moving. 

 

3/9 – CRT Meeting• Review the finalized design.• Present a list of necessary materials to be ordered to build and fabricate the robot.

 

3/10-3/22• Order and receive all materials necessary to build the robot.• Put a plan together of which components will be fabricated where and when based on the build summary and

what has been received.• Begin fabrication as soon as material and labor are available.

 

3/23 – CRT Meeting• Fabricate components and begin assembling them as they are completed

Time Line4/6 – CRT Meeting• Complete fabrication

 

4/13 – CRT Meeting• Complete final assembly.• Make any minor adjustments.

 

4/14 - 4/29• Practice operating the Bot prior to the competition.• Determine need of and procure any spare parts that may be required for repairs at the competition.

 

4/30 - Competition

Preliminary Designs

Preliminary Designs

Preliminary Designs(Software Used)

AutoDesk Inventor AutoCAD

Assemble Chassis & Power Train

After assembly, we decided that the included parts did not fit our needs. We had to swap out a majority of the chassis components.

Specifications & Testing

Sheet Metal: 1/8” and .090 aluminum

Motor: 20,000 RPM with 4 to 1 step down gear box plus a gear with double the tooth ratio for 2500 RPM

Wheels: (kit)

Blades: 5-1/2” circular saw blades 18 – 24 teeth per blade

Belts: xl series timing belts

Gears: 20 to 1 ratio for drive motor and 4 to 1 ration for weapon motor

Metal Testing: we have used a hammer to hit the saw blade. We have bent the metal to test its strength.

Weights: we weighed the parts and materials to ensure we met the maximum limits.

Engine Selection: we researched the speed, weight, and torque of different motors and learned about gear ratio to choose the motor

Final Part Designs

Final Part Design (Cont’d)

Final Assembly Design

Fabricate Parts

Machinists taught us about their trade, like terminology, how to use the machines, math, and some science about the materials.

Fabricate Parts

We cut material to shape. We drilled material for fasteners or lighter weight.

We had to bend a part made of aluminum and it snapped. We learned the metal had to be slightly heated for it to bend and not break.

Fabricate Parts (Machines Used)

Cut Off Saw Band Saw

Fabricate Parts (Machines Used)

Vertical End Mill Lathe

Assemble Weaponry & Armor

We developed a powertrain system for motors to power inline saw blades.

We were able to fasten the aluminum armor to the motors, weaponry, and chassis.

Assemble Weaponry & Armor

The bottom of the armor has skid plates and still allows enough clearance for the 2 wheels.

Problem Solving Steps

1.    Define and Identify the Problem

2.    Analyze the Problem

3.    Identifying Possible Solutions

4.    Selecting the Best Solutions

5.    Evaluating Solutions

6.    Develop an Action Plan

7.    Implement the Solution

Define and Identify the Problem

1. During the design stage and other stages in our Team Processes, keeping the weight under 15 pounds was the biggest challenge because we wanted to make our bot with many features such as various weapons and thick-hard armor.

Analyze the Problem

2. We researched many different parts for power, durability, and weight. Our goal was to find parts that were a fit for our Bots function. 

Identifying Possible Solutions

3. We found that to conserve as much weight as we possibly could; thinner armor in places that needed it less, put holes in armor, pick out new parts that weigh less and take up less space

Selecting the Best Solutions

4. We decided that our current motors, weaponry, and using the armor as part of the chassis was best for our Bots function.

Evaluating Solutions

5. We decided we should weigh all the parts, calculate how to transfer power with different gear ratios, and modify the armor.   

Develop an Action Plan

6. We planned to change most of the parts, transfer power with different gear ratios, and modified the armor until we had a final working Robobot that met specifications.   

 

Implement the Solutions

7. Seeing as all of these solutions were easily implementable, we decided that we would integrate all of the aforementioned solutions into the design of our robot to meet requirements.

The Final Product

Driver Training

Captain Zach will be behind the wheels and blades of the Devil Dogs’ Battlebot. Opponents beware –

SCRAP HAPPENS!

Safety Check

Competition

Competition

• We believe we developed the best RoboBot.

• Designing, fabricating, and assembling the RoboBot was a great learning experience.

• We appreciate the guidance and assistance from the engineers and manufacturers at CRT.

• Go Blue Streaks!