home | toot hill school - yr 9 mp3 speaker...fore using the laser cutter study the following...

In this project you

will learn:

Reserch Skills.

Health and Safety

Basic electronics

Soldering skills

Quality Control

Generating ideas

Research

CAD

CAM

TOOT HILL DESIGN TECHNOLOGY DEPARTMENT

YR 9 MP3 SPEAKER

DESIGN BRIEF

TASK 1: Copy out and complete the Design Brief in your exercise book. Remember to underline your headings. Brief: You are to design and manufacture an MP3 amp circuit and design a prototype for the packaging (case) of the electronic circuitry and components.

TASK 2: Spider Diagram of ideas. Write down as many differ-ent ideas as you can for the shape and style of the packaging (case). Remember you can base your idea on anything!

TASK 3: Using the internet find 3 different types of MP3 speakers. Copy and paste the pictures into word and below each picture produce a table and write about the following items.

Comments Marks out of 10

Materials

Ergonomics

Aesthetics

Cost

I DOG SPEAKER!

PRODUCT ANALYSIS

TASK 4 : Having completed your Product Analysis explain in your own words which MP3 speaker system you would buy out of the three and explain the reason for your choice. Use the following words in your paragraph: Materials Ergonomics Aesthetics Cost

TASK 5: Questionnaire A questionnaire is used to find out the opinions and ideas of others. It is a research tool which is used in industry. In your exercise books write the definition for each of the following words. You may find it easy to present it in a table?

LITERACY!

DEFINITION

Materials

Cost

Function

Aesthetics

Reliability

Target Group

Ergonomics

Safety

QUESTIONNAIRE AND RESULTS

TASK 6: In your exercise books produce a questionnaire in-cluding 8 questions. Each Question must be based on the words form the previous task. Remember in a questionnaire en-sure to write questions where there are several answers to choose from E.g., Materials If you were to buy an MP3 speaker which of the following materi-als would you prefer it to be made from? Steel Aluminium Plastic Wood

Task 7: When you have completed your questionnaire type it in Word and print out 3 copies. Then get 3 people to complete a questionnaire each. Record their answers and use EXCEL to produce Pie Charts or Bar Charts. Your teacher will teach you how to use the software.

ICT!

SPECIFICATION

TASK 8: Now you have a completed your research use the in-formation gathered to write a specification for your MP3 player. Remember a specification is a series of statements describing what your final product MUST or MAY have. Use the words from Task 5 to help produce your Specification. You may wish to present it in table like below:

It MUST be……... It MAY have…...

Materials

Cost

Function

Aesthetics

Reliability

Target Group

Ergonomics

Safety

TASK 9: In your exercise books draw 4 different designs for a possible MP3 speaker. Annotate your designs referring to your specification as much as you can. Remember to look at the Assessment for Learning posters in your class-room. Include colour on your designs.

DESIGN IDEAS

TASK 10: On A3 paper draw a picture of the following tools used for soldering and write their correct name in a table in your exercise books.

SOLDERING

Draw Picture Tools name Use?

Soldering Iron

Soldering Iron Stand

Solder

Solder Sucker

Printed Circuit Board

Side cutters

Transistor

Resistor

Capacitor

Speaker

Battery Clip

Intergraded circuit

Chip Holder

Jack

Gather tools - Soldering Iron. Soldering Iron Stand, Solder, Side cutters, Sponge.

SOLDERING

Bend the legs on the component so they can fit into the PCB.

Place the components into the PCB ensur-ing you put it in in the correct way up.

Clamp the PCB to the table (or stick down with Masking tape) and heat the leg of the component with the soldering iron..

. Add solder to the joint whilst the solder-ing iron is still in contact with the compo-nent leg.

Ask your teacher to check the joint then trim with the side cutters.

Task 11: Write the following sentences in your ex-ercise book in the correct order of sequence.

SOLDERING

Task 12 : Using the powerpoint on soldering follow the instruc-tions and build your circuit for the MP3 speaker. Remember to check your component values and make sure your joints are not dry. You need to build small volcanoes! See diagram below.

Task 13: Once you have completed your circuit you need to check your circuit to see if it works! Connect your circuit to a 9 V battery and plug it into your MP3 player. Not working?- Check the following! • Dry Joints! - Might be holes visible in the joint • Capacitors in the PCB in the correct position • Chip Holder soldered incorrectly. Check position! • Resistors in the wrong position on the PCB • Loose connection on your multi core wires.

LASER CUTTER (CAM)

Task 14:Once you have completed your circuit you need to use the Laser Cutter to cut out the housing for the Amp cir-cuit. Your teacher will give you a demo on how to use it. Be-fore using the Laser Cutter study the following photographs and answer the questions on the next page.

CAD/CAM– Software + Laser Cutter Honeycomb cutting bed

Inside the Laser cutter. Material is placed in top the left corner. This is called Computer Aided Manufac-ture

Materials that can be cut on the laser cutter: Acrylic (3mm) , Paper, Card, Textiles, MDF

Techsoft 2-D Design : CAD

The image on the left is a screen print of the software used to design the casing for the electronics. Once this is completed it is sent to the laser cutter. The software is very easy to use. This is called Com-puter Aided Design

This tool bar is used to create basic shapes, insert text, add labels and apply colours to images.

This tool bar is used to change the draw-ing point on the screen. You are also able to magnify in and out on the screen. There are also delete options available.

CAD/CAM

Task 14:Draw the table below in your exercise book. (Be sure to use a pencil and ruler) Write down as many advantages and disadvantages as you can for using CAD/ CAM when manufactur-ing any product in industry?

ADVANTAGES DISADVANTAGES

CADCADCADCAD CADCADCADCAD



CADCADCADCAD CADCADCADCAD CAM CAM CAM CAM CAM CAM CAM CAM CAM CAM

Evaluation

0

1

2

3 4

5

1. I worked to deadlines in

class and with my home-

work. 2. I have successfully

soldered my circuit

together

3. I produced a

quality market-

able product.

4. I have tried to

raise the standard

of my achieve-

ment.

5. I have tried to ensure that

my written work is presented

appropriately and neatly.

6. I have enjoyed the

year project

7. I carefully

followed Health

& Safety rules at

all times.

8. I behaved appropriately

and responded promptly

to teacher instruction.

3 things I have learnt which I can use in my next module: __________________________________________________________________ __________________________________________________________________ __________________________________________________________________

3 things I need to improve in the next module: __________________________________________________________________ __________________________________________________________________ __________________________________________________________________

Include a photograph of your final product in your exercise book with your evaluation

Task 16: Complete the evaluation in your exercise books

KEY WORDS

1. Circuit 2. PCB 3. Soldering Iron 4. Solder Sucker 5. Solder 6. Soldering Iron

Stand 7. Resistor 8. Capacitor 9. Integrated Circuit 10. Side Cutters 11. Wire Strippers 12. Multi Cote Wire 13. Single Core Wire 14. Battery Clip 15. Speaker 16. Jack 17. Chip Holder 18. Acrylic 19. Screw Driver 20. Screws 21. Spacers 22. Laser Cutter 23. Computer Aided Design— 2D Design 24. Computer Aided Manufacture

Task 17: Learn the definition and spelling of the following key words.

End of Module Test

1. Write down the definition for the word Aesthetics 2. Write down the definition for the word Ergonomics 3. Name a research method used to collect opinions and views

of others. 4. Name 8 criteria when producing a specification. 5. Name the tool used to strip a wires plastic coating 6. There are 2 types of wire used in electronics, one is multi

core. What is the other? 7. What is the name of the tool used to remove solder? 8. When soldering a perfect joint what must you try to

achieve? 9. When soldering a perfect joint what must you try to avoid? 10. What does PCB stand for? 11. Name 3 safety rules when soldering? 12. Explain 3 advantages of using CAD in Industry? 13. Explain 3 advantages of using CAM in industry? 14. Explain how human error could effect the manufacture of

the casing for an MP3 speaker when using a Laser Cutter? 15. Using notes and illustrations draw a design modifying one

aspect of your MP3 speaker system.

Task 18: Read the question carefully and write your answers clearly in your exercise books. Make sure you spell all key words correctly and use a ruler to draw any diagrams.

HOMEWORK: Complete

Week Task Page

1 Brief / Spider Diagram

2 Questionnaire Pie Charts

Task 3– Product Analysis *

2

3 Practical –Soldering

4. Practical—Soldering

Task 8- Specification for MP3 design*

5

5. Practical—Soldering

7 Laser Cutting

9 Laser Cutting/ Assembly

6 Practical– Soldering Laser Cutting

Task 9- Initial Ideas*

6

8 Laser cutting/ Assembly

Task—Evaluation*

11

Progress Feedback Sheet

Section Student level Teacher Level Teacher Comment

Research

Initial Ideas

Soldering

Assemblyl

Homework

Student Target Comment

Teacher Target Comment

Final Level

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