TOOT HILL DESIGN TECHNOLOGY DEPARTMENT

YR 8 AUTOMATA

In this project you will

learn about:

Motion & Mechanisms

Cams

Ways of working accurately

Systems

Ways of improving ideas

Page 2

YOUR AUTOMATA

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2

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TASK 1: Correctly name the different components of the auto-mata in your exercise book using the keywords below.

Aluminium Dowel Cam shaft

Eccentric Cam Cam Follower

Ply wood Automata Design

Housing Joint Screws

Handle Shaft Spacer

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• The swings in a park move in a………………... motion .

• If something reciprocates it goes ……………and ……….

….. or ….to ………...

• Linear motion is easy to remember because it contains the

word………….inside it!

• ………………… are good at making motion happen, that

is why they are used in handles.

• A window wiper on a car is a good

example of something that…………….

TASK 3: Complete the following sentences using the Key words on the previous pages.

The four types of motion

TASK 2 : There are 4 types of motion. Divide a page in your exer-cise book into 4. Write down each word and draw an example of each motion.

• Reciprocates • Oscillates • Rotary • Linear

LITERACY

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Mechanisms — Cams

TASK 4: Copy the diagram below, name the parts using the key words. • Pear shaped CAM • Cam Follower • Cam shaft • Cam follower guide

Mechanisms — Cam Wheels

Because the follower follows the shape of the cam wheel, different shapes of wheel will make the follower move in different ways

TASK 5: Copy, name and describe what movements are made by the wheels below.

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How far will the follower rise & fall?

Draw an eccentric wheel with an axle position that will make the follower

rise;

A —30mm (3cm)

B—45mm (4.5cm)

C– 20mm (2cm)

The shape of the cam wheel will decide how much the follower rises and falls. TASK 6: Look at the eccentric wheel below—it makes the fol-lower rise and fall..... But where you put the axle decides how much it rises and falls.

Measuring mechanisms

NUMERACY !

TASK 7: Using www.automata.co.uk produce and information page on the following mechanisms. Find an example of a use for each mechanism

More Mechanisms….

LEVERS

CRANKS

PULLEYS GEARS

ICT

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TASK 9: Produce a spider diagram of possible themes for your automata, ie the object that will move up and down on top of your automata. You may need to go onto a computer to get examples of themes. Task 10: Divide a plain page in your exercise book into 4, and draw 4 of your favourite themes from your spider diagram. Remember to refer to your assessment learning grid for initial ideas.

TASK 8: Copy out the Design Brief and Specification below and fill in the words or numbers missing from each sentence.

Design Brief; To design and make a mechanical toy.

Specification; Your toy must; Use an ..... cam to make a reciprocating motion. Use a box (carcase) that is ........................................... in size. Use ..........................................to make the box. The wheel will be made of ..................... The axle and follower will be made of ...............................

Design brief, specification & ideas

Selecting and improving an idea

Product Analysis Page 7

Task 11: Using the internet and the websites below find one example of an automata and ana-lyse the follow aspects:

• Materials

• Cost

• Function

• Motion

• Aesthetics

• Target group Produce the table below on Word, and paste the image above your table. Write about the different aspects of the automata in the table. See below for an example.

http://www.automata.co.uk/ http://www.cabaret.co.uk/index.php

ASPECTS COMMENT

MATERIALS (What it sis

made from)

The automata is made from……..

COST( How much it costs) The automata costs……….

FUNCTION (How it works)

The automata works by…………..

MOTION (Type of move-ment?)

The automata moves in a………..

AESTHETICS (Shape, style, colour)

The automata is based on………….

TARGET GROUP (Who is it aimed at?)

The automata is aimed at………………..

TASK 14: You will make 2 housing joints to manufacture the frame for your automata. In your own words explain what you will use the following tools for when making a housing joint. Copy out the table below.

TEMPLATE– Cam Follower

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TASK 12: Using graph paper, draw your design to scale. You need to draw 2 copies. One will be for your exercise book and the other will be for your practical work.

• Draw a square 100mm X 100mm, this is the side of the material that you will be given.

• Draw your design onto the graph paper

• Make sure to use as much of the area as possible.

• Cut out your design using scissors. Remember you need 2 copies.

TASK 13: Once you have completed drawing your designs on graph paper copy around one of your templates onto card and cut it out with scissors. This will be your template for the practical.

HOUSING JOINT

TOOL USE

Steel Rule

Pencil

Marking Gauge

G Clamp

Hard back Saw

Chisel

Mallet

Scrap wood with straight edge

DESIGN FOR HANDLE

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TASK 15: The handle for your automata will be made from ACRYLIC. Divide your page into 4 and write the heading at the top of your page, ‘ Handle Design’. Don’t forget to underline your headings! Using the research that you produced for theme designs, draw 4 differ-ent design handles. These must be related to your chosen design.

Why not try using 2D design to draw your handle. This is called Computer Aided De-sign. You could even try cut-ting it out on the laser cutter!

TEMPLATE– Handle

TASK 16: Once you have completed your designs. Decide which is your favourite and produce 2 templates for the shape of the handle. • Glue one into exercise book • Use the other for your practical. • Remember to mark out 2 holes, one for the cam shaft and one

for dowel rod.

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SYSTEMS APPROACH

The systems approach is used to explain how some-thing works. It breaks it down into 3 stages, Input, Proc-ess & Output. An example of this is below. This explains how to turn the channel over on a TV using a remote control.

TASK 17 : Using the Systems approach explain in your exercise book how to do the following: • Make toast using a toaster • Taking a picture with a camera • Using your automata and making it

work.

INPUT PROCESS OUTPUT

Press button Remote

Infra red signal sent Channel turns over

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Evaluation

0

1 2 3 4 5

1. I have been accurate

when using marking out

tools. 2. I’ve worked with

numbers to mark out

parts of the product

3. My automata

works as

intended.

4. My written

work is well

presented and I

have followed the

PROUD scheme.

5. I have completed all home-

work

6. I have enjoyed the

automata 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: __________________________________________________________________ __________________________________________________________________

Task 18: Complete the above exercise in your book. Take a photograph of your

finished project and glue it into your book. Remember to refer to the Assessment for learning charts on the wall in the classroom!

KEY WORDS

1. Motion 2. Mechanism 3. Linear 4. Reciprocating 5. Rotary 6. Oscillating 7. Lever 8. Linkage 9. Cams 10. Crank 11. Pulleys 12. Gears 13. Cam wheel 14. Axle 15. Follower 16. Pear shaped wheel 17. Snail wheel 18. Eccentric wheel 19. MDF 20. Plywood 21. Hardboard 22. Chipboard 23. Blockboard 24. Interference fit 25. Sliding fit

Task 19: Learn the definition and spelling of the following key words.

End of Module Test

1. How many types of motion are there? 2. What is another word for motion? 3. Draw an arrow diagram of each of the 4 motions. 4. Name 3 things that have a rotary motion. 5. Name 3 things that have an oscillating motion? 6. What is a crank? 7. What do gears wheels have that pulley wheels don’t? 8. What is the name of the part that goes up and down

on a cam? 9. Name two types of cam wheels. 10. What tool marks at right angles to an edge? 11. What tool marks parallel to an edge? 12. What is the best way of marking where you will drill? 13. What is Lever? 14. Give a common use for aluminium 15. A bike has several mechanisms. How many can you

think of? 16. What material did you use for the axle? 17. What is another name for a tight fit? 18. What was the name of the wood glue used to glue

your automata together? 19. What was the name of the joint used to make your

automata? 20. Name 5 tools used to make your automata.

Task 20: 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

Week Task Done?

1 Find examples of the four mo-tions in your home—sketch and label them.

2 Find SIX examples of levers in your home— draw them and explain why a lever is there.

3 Think about the ideas you have had for your toy. Get other peoples opinions about them.

4. Find examples of manufactured boards—write which ones you find, where you find them and why you think they are used.

5. Find images or objects that can be used on the follower/s.

6. Find images and materials that can be used to decorate the toy.

7. Write down the four most im-portant things that you could do to improve your toy.

Progress Feedback Sheet

Section Student level Teacher Level Teacher Comment

Mechanisms &

Motion

Ideas &

Designing

Working Accurately

Decorating &

Finishing

Homework

Student Target Comment

Teacher Target Comment

Final Level