Name:

D&T Group:

Teacher:

Tutor Group:

MP3 Amp & Dock

Subject:

Design & Technology

Y11 Minimum Target: ___________

Year 9

Your work will be marked as: Below / On / Above / Well Above the path to this target.

It’s all about the base! Homework Homework 1: Undertake some target market research

Homework 4: Production Plan. Create a flowchart of

about what the user wants / needs! Questionnaire? Observation Report? How to research is your choice…

the Production of your MP3 Dock Case, starting with the Vacuum Forming of your Shell.

Homework 2: You are required to write a detailed

Homework 5: During the production of your Amp &

Specification for the design of your MP3 dock. You must take into account your Design Brief and your Primary

Dock use the page provided to show details of any Patterns & CAD/CAM used in the manufacture.

Homework 3: Draw a final Presentation Drawing of

Homework 6: Modifications for Sustainable Design

your idea. Try to draw it in Isometric and use the ‘thick and thin line’ technique to enhance the design.

improvements to your MP3 Dock. Design modifications to your design based on your evaluation & comments

Designing

Making

This work is

This work is

Below / On / Above / Well above

Below / On / Above / Well above

your minimum target path

your minimum target path

Evaluating

Technical Knowledge

Overall Project

This work is

This work is

This work is

Below / On / Above / Well above

Below / On / Above / Well above

Below / On / Above / Well above

your minimum target path

your minimum target path

your minimum target path

Year 9 = MP3 Amp & Dock

Marking Summary Use this space to keep track of your marks throughout the different sections of the project.

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Design Brief:

The story so far...

Bowie’s Mp3’s manufacture high quality, bespoke, audio amplifiers for specific markets / users. The designs and images are contemporary, modern, with a humorous twist. The product incorporates an amplifier that can be connected to Mp3, Mp4 or CD players. The product will be mostly manufactured by hand, so a high quality finish is of utmost importance. Mind Map (Brainstorming Market & Environment)

Task:- Use the space to the left to Brainstorm with your peers about who you might design a MP3 Amp & Dock for and also where they might want to use it.

Possible users / environments for my MP3 Doc

Task:- Compose your own project Design Brief in the space below, try to list some of the wants and needs from the information above. Remember that a brief is an outline of what you are intending to do.

Example Brief:- ‘ I am going to design and make a Mp3 Audio Amp and Dock for my 5 year old Sister for her to be able to use in the bathroom, at bath time.

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Research Plan: What Am I Going to Need to Know about my target market and Environment?

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Homework 1 Undertake some target market research about what the user wants / needs! Questionnaire? Observation Report? How to research is your choice… Use the page below to show the results of your research...

Google is not the answer : First Hand , Primary, Research is needed!

Year 9 = MP3 Amp & Dock

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The MP3 Electronic Circuit Circuit symbols are used in circuit schematics which show how a circuit is connected together. The actual layout of the components is usually quite different from the circuit diagram. To build a circuit you need a different diagram showing the layout of the parts on a Printed Circuit Board (PCB) .

Task:- Complete the table below which includes most of the components used in our MP3 Amplifier circuit. Component

Component

Description Of What

Symbol

Name

The Component Does

Speaker

Potentiometer

Year 9 = MP3 Amp & Dock

Knowledge

Which components above are important to place in the circuit the correct way around?………………………………………………………………………………………..

Technical

This is a temporary store of electrical energy. It is like a bucket with a hole in it; it fills with electricity then slowly releases it again in a controlled manner. It is measured in Farad’s. It can be used to smooth out electrical spikes and store electricity for short times. This work is Below / On / Above / Well above your minimum target path

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4. Then the auditory nerve takes the message to the brain

1. the sound makes the eardrum vibrate Sound Waves

To understand how speakers work, you first need to understand how sound works. Inside your ear is a very thin piece of skin called the eardrum. When your eardrum vibrates, your brain interprets the vibrations as sound -- that's how you hear. Rapid changes in air pressure are the most common thing to vibrate your eardrum.

3. The bones make the fluid move and the hair cells bend

An object produces sound when it vibrates in air (sound can also travel through liquids and solids, but air is the transmission medium when we listen to speakers). When something vibrates, it moves the air particles around it. Those air particles in turn move the air particles around them, carrying the pulse of the vibration through the air as a travelling disturbance. 2. The eardrum makes the bones vibrate

Task: highlight the key points in the text above. Task: Using the words in bold below label the speaker diagram neatly and accurately.

Check out the ‘Mighty Boom Ball’ on www.mightyboomball.com to see how vibrations make sound!

Extension Task: The quality of sound is improved by the housing that you place the speaker in. Research speaker housings and methods to improve sound quality to see if you can include some improvements into your future ideas... Magnet Diaphragm

Voice Coil

Spider

Dust Cap

Basket Suspension

Task : log onto “howstuffworks.com” and using your own words explain how a speaker works. Below:

…………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………….. …………………………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………………………………..

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Homework 2 You are required to write a detailed Specification for the design of your MP3 dock. You must take into account your Design Brief and the outcome of your Primary Research. Don’t forget who you are designing for and where the product is going to be used! Justification for your specification points is important... 

My MP3 Dock must have a volume control so that the user can easily adjust the sound level for different moods and environments.

Peer Feedback: Use the descriptors below for a Design Specification and award a level with feedback: H ow Goo d?:

Confident: Produce a specification which covers most of the requirements with some explanations and justifications. Points based on research that has been done. Outstanding: Produce a detailed specification which covers the general needs and requirements of the user. Points are justified and based on sound research. Exceptional: Produce a full and detailed specification covering key points with a detailed explanation for each. Points are justified and based on Primary Research.

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Design Ideas You need to use your specification as a guide to develop a range of innovative and creative design ideas on the following 2 pages. The base of your MP3 amp must use one of the Vacuum Formed shells shown to the right. This shell holds the electronics and must be incorporated into all designs. Your teacher will explain some ideas of how the shell can be used in your designs….

Hint: To get a higher level outcome be creative, add annotation about materials, construction and evaluation.

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Design Ideas Continued...

Remember: Designs are different from art because it gives information...

Designing This work is Below / On / Above / Well above your minimum target path

Designing Confident

I have undertaken some independent research into user needs. I have developed a range of ideas that show detail of construction and materials. My ideas are in 3D. My ideas are evaluated against my specification in the annotation.

Outstanding

I have researched into user needs and requirements and I have developed a specification based on the results. I have developed a good range of design ideas that are fully annotated against the specification and also include notes and sketches about construction.

Tick Box Student

Teacher Feedback:

Teacher

Exceptional

I have got detailed primary research about my intended users needs, develop a justified specification based on the outcomes. I have developed a wide range of creative ideas that show detail about materials and construction. These ideas are clearly evaluated using

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Design Ideas Review… You need to do a Peer Review of your best two ideas... Friends…

Review…

1. Comment

What’s good and bad about your design? ………………………………………………………. ………………………………………………………. ………………………………………………………. Score

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/10

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2. Comment

How does it meet your Design Brief and Specification? ………………………………………………………. ………………………………………………………. ………………………………………………………. ………………………………………………………. Score

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/10

Design 1

Friends…

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Review…

1. Comment

What’s good and bad about your design? ………………………………………………………. ………………………………………………………. ………………………………………………………. Score

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/10

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2. Comment

How does it meet your Design Brief and Specification? ………………………………………………………. ………………………………………………………. ………………………………………………………. ………………………………………………………. Score

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/10

Design 2

Year 9 = MP3 Amp & Dock

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Homework 3 Draw a final Presentation Drawing of your idea. Try to draw it in Isometric and use the ‘thick and thin line’ technique to enhance the design. Include annotation notes and peripheral sketches to show information and detail about materials and construction. Some idea of sizes are important too...

Thin

Thick Isometric Drawings 30 / 60 Thick

Thin

Remember the Spider Technique for Thick and Thin Lines

Year 9 = MP3 Amp & Dock

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How to Assemble your MP3 Amplifier Circuit : Label the components 10uF

1uF

220uF

Ω 47 nF 102 nF

Speaker Electrolytic Capacitor Ceramic Capacitor Potentiometer 3.5mm Headphone Jack  Hold the soldering iron like a pen, near the base of the handle. Imagine you are going to write your name.

Remember to never touch the hot element or tip.

 Make sure that your soldering iron is clean. Clean the tip of the hot soldering iron on a damp sponge.

 ‘Tin’ your soldering iron. Melt a small amount of solder onto the tip of the soldering iron.

 Touch the soldering iron onto the joint to be made. Make sure it touches both the component lead and the track. Hold the tip there for a few seconds and…

 Feed a little solder onto the joint. It should flow smoothly onto the lead and track to form a volcano shape as shown in the diagram. Apply the solder to the joint, not the iron.

 Remove the solder, then the iron, while keeping the joint still. Allow the joint a few seconds to cool before you

move the circuit board.

 Inspect the joint closely. It should look shiny and have a

‘volcano’ shape. If not, you will need to reheat it and feed in a little more solder. This time ensure that both the lead and track are heated fully before applying solder.

Year 9 = MP3 Amp & Dock

Resistor Audio Amplifier

Extension task: Try using 2D PCB which is a CAD package for developing electronic circuits to design your own PCB layout for the Amplifier circuit. The circuit diagram on Page 4 and the layout above should help you with the task. If you have the time then you could ask Mr. Dalton to help you make the board to use in your project!

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Resistor Colour Code… Recap...

Have a go at working out the sizes of the resistors below?

How big is the resistor in your MP3 Amplifier Circuit?.................. What does the resistors tolerance mean?....................................... ………………………………………………………………………………………………. Sound Holes can be placed anywhere in the shell and can be anything from 5mm

The hole for the headphone

The Shell Electronics Case… You might want to research how to improve sound quality by the shape of the cone in front of the speaker. Experiment with card...

Use the space below to work out where The hole for the you are going to place the holes in your shell and volume control is also how you are going to fit everything into the 7.5mm in size. case. Use notes and sketches to help you.

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Homework 4 Production Plan. Create a flowchart of the Production of your MP3 Dock Case, starting with the Vacuum Forming of your Shell. Use the flowchart symbols below for each of the instructions. Decision boxes would have two outputs, one ‘yes’ and one ‘no’. You might want to use the Symbols in Word, then print and paste it in.

Year 9 = MP3 Amp & Dock

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Use this page to show details of any Patterns used in the manufacture. Include screenshots of any CAD work that you completed. Make sure you annotate them carefully to show what they are used

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Reminder about how to use the Vacuum Former!

Additional Research:Use this space to collect important sizes required to help you make your Dock. i.e. the size and shape of the MP3...

Don’t Forget Notes:……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………………………………………………………………………

Work from my own detailed plans Use a range tools and equipment with precision Carry out a range of specialist techniques (with support) Produce a high quality, well considered final product

Exceptional

 

Carry out all tasks accurately and with precision Work independently and find solutions to design & practical problems Carry out a range of specialist techniques independently



Year 9 = MP3 Amp & Dock

your minimum target path

Outstanding

   

Below / On / Above / Well above

Select & use a range of tools and equipment Work accurately Pay attention to the quality of final product Produce a well-designed product.

Teacher

This work is

Confident

   

Student

Making

Making Skills

Tick Box

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Evaluation

Y/N

Evaluation is an important part of the Design Process. It is used by designers to check they have produced a good design with all the features they identified in the specification.

Is the product easy to use?

Your opinions are important, but you must also get some other peoples opinions as well.

How?

Y/N Does your product meet the Design Brief?

Does it effect the environment?

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Did you finish all the tasks in this booklet?

How could this be improved? ………………………………………………………………………………….

Was it easy to Design and Make?

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If No, Why?

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Is the Product Safe for the target user?

………………………………………………………………………………….. ………………………………………………………………………………….. On a scale of 1 to 5 (5 highest) score your product in the following areas:Function

Safety

Environment

Tools

Appearance

Construction

Total

/30

Tick the following boxes to show improvements that you could of made to your performance on this project:Improve Effort

Modify Approach

Could the product be mass-produced? Ask a friend to score your product and folder (out of 5, be honest!). Your friend should also list things that could be improved:Complete all work

Quality of soldering

Creative designs

Quality of Sketches

Use of annotation

Quality of finish

Meeting the Specification

Suitability for user

Total

/40

…………………………………………………………………………………. ………………………………………………………………………………….

Add Shading

Use correct equipment

Improve Finish

Quality of Construction

Solder Accurately

Work Independently

…………………………………………………………………………………. …………………………………………………………………………………. ………………………………………………………………………………….

Year 9 = MP3 Amp & Dock

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Homework 6 Modifications for improvements to your MP3 Dock. On the page below design a detailed set of modifications to your design based on your evaluation and the comments from your peers. The modifications should look into ways in which you could be more sustainable in your design. Look up ‘Sustainable Design’ to give yourself some idea of its meaning.

What are the main concepts of Sustainable Design?

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Re-Write a Section Use the page below to Re-Write a Section if required. Remember to label which section it is for!

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 Confident

 

 Confident



Outstanding

 

Tick Box Student

Teacher

Compare design ideas/final product against the design brief criteria Suggest improvements for design ideas/product Gain technical information from examining, describing and evaluating similar products

Evaluating

Evaluating

This work is Below / On / Above / Well above your minimum target path

Teacher Feedback:-

Explain why materials, ingredients or components have been used Identify and justify any changes from the final design idea to the final product Suggest alternative materials, components or ingredients Carry out investigations /tests / experiments to evaluate final product

Final Photos of Your MP3 Amplifier and Dock : Don’t forget to annotate them...

Photo of MP3 Dock

Photo of Electronics

Paste Here

Paste Here

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Literacy—Key Words The table below is to list Key Words and their correct spelling. Resistance ( R ) =

Voltage ( V ) Current ( I )

Ohm’s Law defines the relationship between Voltage, Current and Resistance in a circuit. It can be written as a mathematical expression:

Resistance is measured in Ohm’s (Ω), Voltage is measured in Volts and Current is measured in Amps. If for example, Voltage is given in Volts and Current is given in milli Amps (mA), then Resistance will be in KΩ (thousand of ohms).

Ohm’s Law Acrylic

Capacitor

Electrolytic

Ohms

Resistor

Thermoplastic

Aided

Ceramic

Evaluate

Parallel

Series

Thermosetting

Alloy

Circuit

Former

Pillar Drill

Solder

Tin

Amplifier

CNC

Iron

Plastic

Solvent

Track

Amps

Component

Lead

Plattern

Steel

Transistor

Battery

Computer

Machine

Pliers

Strippers

Vacuum

Board

Current

Memory

Potentiometer

Switch

Voltage

Buzzer

Design

Milling

Printed

Sustainability

Wire

How Sound Waves Work... Sound waves exist as variations of pressure in a medium such as air. They are created by the vibration of an object, which causes the air surrounding it to vibrate. The vibrating air then causes the human eardrum to vibrate, which the brain interprets as sound. Sound waves travel through air in much the same way as water waves travel through water. In fact, since water waves are easy to see and understand, they are often used as an analogy to illustrate how sound waves behave. Sound waves can also be shown in a standard x vs y graph, as shown here. This allows us to visualise and work with waves from a mathematical point of view. The resulting curves are known as the "waveform" In the diagram below, the black dots represent air molecules. As the loudspeaker vibrates, it causes the surrounding molecules to vibrate in a particular pattern represented by the waveform. The vibrating air then causes the listener's eardrum to vibrate in the same pattern. Voilà — Sound! Note that air molecules do not actually travel from the loudspeaker to the ear (that would be wind). Each individual molecule only moves a small distance as it vibrates, but it causes the adjacent molecules to vibrate in a rippling effect all the way to the ear.

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