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Marist College Pagewood
Industrial Technology Engineering
Co2 Dragsters
Workbookand
Folio
Due date_3__/__6__/___11___
Student Name:________________________Class: _____________________________
Teacher: Mr Hayes
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OUTCOMES TO BE ACHIEVED
5.1.1 Identifies, assesses and manages the risks and OHS issues associated with the use of a range of materials, hand tools, machine tools and processes
5.2.1 Applies design principles in the modification, development and production of projects5.2.2 Identifies, selects and competently uses a range of hand and machine tools, equipment and
processes to produce quality practical projects5.3.1 Justifies the use of a range of relevant and associated materials5.4.1 Selects, applies and interprets a range of suitable communication techniques in the
development, planning, production and presentation of ideas and projects5.5.1 Applies and transfers acquired knowledge and skills to subsequent learning experiences in a
variety of contexts and projects5.6.1 Evaluates products in terms of functional, economic, aesthetic and environmental qualities
and quality of construction
Marking Criteria
Your project andportfolio is worth 40% of your marks for this subject. Below are the criteria your teacher will use to mark your portfolios.
Criteria Outcome
Research
Forces 5 4 3 2 1 0 5.2.15.5.1
Drag5 4 3 2 1 0 5.2.1
5.5.1Axles 5 4 3 2 1 0 5.3.1
Shaping 5 4 3 2 1 0 5.5.1
Gantt chart 10 8 6 4 2 0 5.4.1
Evaluation 10 8 6 4 2 0 5.3.15.6.1
Drawing 10 8 6 4 2 0 5.2.15.4.1
Production
Shaping 20 16 12 8 4 0 5.1.15.2.2
Sanding 20 16 12 8 4 0 5.1.15.2.2
Painting 10 8 6 4 2 0 5.1.15.2.2
Total /100
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Criteria Mark allocation
All work is completed in an extensive manner and presented by the due date Work is presented in a neat and attractive manner with correct spelling and
grammar Student shows extensive understanding and analysis of the design brief and the
task they have been given Extensive research is evident Student has compiled an extensive quantity of background information Student has prepared and labelled extensive drawings associated with their topic Student has completed their evaluation in an extensive manner
85-100
All work is completed to a high standard and is presented by the due date Work is neat and attractive using a high level of correct spelling and grammar Student shows a high level of understanding the design brief Student completes research about their topic to a high standard Student has prepared drawings to a high standard Student has completed their evaluation to a high standard
70-84
All work is completed to a satisfactory level and submitted it by the due date Work is presented using a satisfactory level of spelling and grammar Student shows a satisfactory level of understanding the design brief Has completed a satisfactory amount of research Student has prepared most drawings to a satisfactory level Student has completed the evaluation to a satisfactory level
60-69
Student has completed most set work and submitted it for marking on or near the due date
Most work is presented in a tidy and neat manner Student shows some level of understanding the design brief Student has completed some research on their design project Student has produced some drawings for their portfolio Student has completed some aspects of their evaluation
50-60
Student has produced a limited amount of set work Work presented is of an unsatisfactory standard Research is limited Drawings presented are of a poor standard and are not labelled Evaluation is minimally or not done
0-49
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FOLIO EXPECTATIONS
YOU WILL NEED TO BRING THIS FOLIO TO CLASS EVERY LESSON
YOU WILL NEED TO HAVE IT KEPT IN A DISPLAY FOLDER
This folio is a record of your work and progress in Technology and shows who you are and what you are capable of doing.
Expectations:
Use blue or black pen only to write. No gel or coloured pens.
Use pencil to sketch your designs. Use coloured pencils only when colouring in designs. Do not graffiti in your or others folio. Respect your and others folio. Complete ALL set tasks in your folio to the best of your
ability. If you are away YOU need to ensure you catch up on your
work.
HAVE FUN!!
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DESIGN SITUATION AND BRIEF Design Situation:
You have just been given a job as an industrial
designer with a famous drag car company in
Indianapolis. Your job is to design, test and build a
new dragster from balsa wood whose only form of
propulsion is a Co2 canister. The size of the blank
is 305x68x40mm. You will be supplied a set of plastic wheels and 2 axles. The
shape of your dragster body is to be hand finished, painted and decorated.
When your car is finished you will be racing it to see who gets the chequered
flag.
In order to complete this project you will need to research a
number of topics including aerodynamics, friction and car design.
Limitations- You have 6 weeks to complete this task. The due date is ___/____/_____
- You will only be issued with 1 balsa blank. If you need another blank these will
need to be purchased @ 2.00 each.
- You need to supply a “lunch Box or shoe box” type container to hold all the parts.
- You will be required to document all of your research and work in this design
portfolio, this portfolio must include:
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- Title page
- All research you have conducted
- All drawings done as part of project
- A brief description of your finished design and how it works
- A PMI (Plus, Minus Interesting) Evaluation on your project
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1. Situation & Problem
2. Design Brief
3. Research / Investigation / Alternatives
4. Selection of Design Solution
5. Draw/ Plan & Develop
6. Project Realisation / Construction Phase
7. Evaluation
The Design Process
Have you solved the problem?
YES… Well done NO… Back to Step 2
Design Process Complete
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RESEARCH
Shape
1. Using the Internet collect 3 pictures of top fuel dragsters, print them out and paste them into the boxes on the left. In the boxes on the right state what you like about that design.
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What I like about this shape____________________________________________________________________________________________________________________________________________________________________________________________________________________
What I like about this shape____________________________________________________________________________________________________________________________________________________________________________________________________________________
What I like about this shape____________________________________________________________________________________________________________________________________________________________________________________________________________________
Log onto http://en.wikipedia.org/wiki/Top_Fuel to answer the questions
What fuel do Top fuel cars use?_______________________________________________
What is the purpose of the aero-foil behind the rear wheels?______________________
___________________________________________________________________
___________________________________________________________________
What is the top speed of a dragster?_________________________________________
Log onto http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html and define the
word
aerodynamic_______________________________________________________________
__________________________________________________
On the same webpage, locate the word airplane and define these words:
Weight___________________________________________________________ ________________________________________________________________
Drag____________________________________________________________ ________________________________________________________________
Lift______________________________________________________________ ________________________________________________________________
Thrust___________________________________________________________ ________________________________________________________________
ForcesOn the same webpage, fill in the missing forces that also operate on a car when it is in motion.
Fill out the following table
Force on Dragster Advantages Disadvantages
Lift
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WeightThrust
Coefficient of Drag(Cod)
Shape
Shape is critical when designing a car body that has a low drag ratio. Log onto
http://www.grc.nasa.gov/WWW/K-12/airplane/shaped.html and sketch some
common shapes and their drag ratio.
Shape A Shape B Shape C
Which shape has the lowest coefficient of friction? Explain your answer._____________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
__________________________________________________________________
___________________________________________________________________
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Drag
Log onto http://en.wikipedia.org/wiki/Drag_coefficient and locate the following answers
.Why do designers try to minimise drag?______________________________________
__________________________________________________________________
Log onto http://en.wikipedia.org/wiki/Automobile_drag_coefficient
What percentage of the power required to cruise at highway speeds is taken up
overcoming drag?_____________________________________________________
Locate a car that has a high Coefficient of drag and a low Coefficient of drag
___________________________________________________________________
Land Speed Record Vehicles.
Use the internet to find the answers; don’t forget to copy and paste the URL of the website
What is a Land Speed Record vehicle? Explain how the design of their fuselage
helps them to reach top speeds__________________________________________
___________________________________________________________________
___________________________________________________________________
2.Locate 3 cars that have achieved a land speed record and paste them in the boxes below. Include the current world record holder.
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Wheel Placement
3. You need to decide where you are to place your wheels on the dragster body to minimise drag. Analyse where the wheels where placed on the cars in question 14. Sketch below the ideal locations.
Explain why you choose these locations for the wheels.
______________________________________________________________
______________________________________________________________
Axles
There are two different types of axles “live” and “dead”. Explain the difference
here
Live -_____________________________________________________
__________________________________________________________
Dead -_____________________________________________________
____________________________________________________________
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Top ViewSide View
Decide on which type of axle you would like to use, and make an annotated
sketch here to show how you will manufacture and attach to your dragster
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DESIGN
Shaping
In the boxes below, sketch 3 of your own dragster designs. Write the strengths, weaknesses and interesting aspects of each design in the boxes.
Plus Minus Interesting
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EVALUATION of DesignsWhich is the best design?
1 2 3Why do you feel this design meets the criteria?
Do you think there will be any technical issues with your design?
How long do you think it will take you to complete the final product?
1week 5weeks 7weeks 13weeks
What help do you think may be needed to complete your product?
What equipment do you think may be necessary to complete your product?
What skills do you hope to pick up during the production of your product?
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Gantt Chart
step Wk 1
Wk 2
Wk 3
Wk 4
Wk 5
Wk 6
Wk 7
Wk 8
Wk 9
Wk 10
research
design
positions for the axles
Tracing
draw the shape of your dragster
shape your blank
Sand and paint
Glue in axles
Follow the instructions below when hand shaping the body.
A. Locate the positions for the axles and drill them on the drill press using a 2.5mm drill.
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This must be done when there is a flat side!!
B. Trace the top and sides of your blank on some paper provided by your teacher. Eg
C. Then draw the shape of your dragster as viewed from the top and sides, cut them out and carefully glue onto your balsa blank.
D. Using a coping saw and files, shape your blank by carefully following
the shapes your have just drawn.
E. Sand and paint.
F. Glue in axles and attach a washer, wheel and finally a nut.
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Right View
Top View
Bottom View
Left View
FINAL EVALUATION1. How did your final product turn out?
Poor Good Excellent
2. What were your strengths in completing the design process?____________
___________________________________________________________
___________________________________________________________
3. What things could you have improved on? __________________________
___________________________________________________________
___________________________________________________________
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4. If you were to do the same design brief over again, would you do anything
different? If so, what?_________________________________________
___________________________________________________________
___________________________________________________________
5. What was your favourite part of the design brief?_____________________
___________________________________________________________
___________________________________________________________
6. What part did you not enjoy the most?_____________________________
___________________________________________________________
___________________________________________________________
7. What could your teacher do to make the task more interesting?___________
___________________________________________________________
___________________________________________________________
8. On the following table tick how you think you went and what mark you think
you deserve for this design task.
5 4 3 2 1
Research
Designing
Making
Time Managemen
t
Completed Product
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