Thursday, 28 June 2012

RESISTANT MATERIALS



 
   
 
V. Ryan © 2002 - 2012
 
   
 
RESISTANT MATERIALS STUDENTS/PUPILS SHOULD ALSO STUDY THE 'EQUIPMENT AND PROCESSES' SECTION OF THIS WEBSITE
 
   
 
MATERIALS
 
 

 
 1. An Introduction to Materials 
   
 WOODS 
 

 
 1. World Distribution of Natural Woods 
 2. World Map - Distribution of Forests and Woodlands 
   
 3. The Preparation of Timber for Commercial Use - 1 
 4. The Preparation of Timber -Air Seasoning - 2 
 5. The Preparation of Timber - Kiln Seasoning - 3 
 6. Summary - Natural Wood - Raw Materials to Manufacturing a Product 
   
 7. Initial Preparation of Timber 
 8. Preparation of Stock - Planing of Boards. 
 PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET ON THE PREPARATION OF TIMBER 
   
 9. Stock Forms - Woods 
 10. Veneer 
   
   
   
   
 14. Sustainability Questions 
   
   
   
 16. Manmade Boards and Natural Woods Questions 
  
   
 PLASTICS 
 1. Plastics, Fuels and Chemicals from Crude Oil 
 2. The Oil Refinery and Distillation Tower 
   
 4. Crude Oil to Fuels and Plastics - Summary Diagram 
   
 5. Thermoplastic Elastomers (TPEs) 
 6. Properties of Thermoplastic Elastomers (TPEs) 
 7. Examination Question - Thermoplastic Elastomers 
   
 8. Renewable and Environmentally Friendly Polylactide 
 9. Polylactide - Life Cycle 
 10. Polylactide - Examination Question 
   
 11. Polyethylene Terephthalate or PET / PETE (Polyester) 
 12. Polyethylene Terephthalate or PET / PETE - Examination Question 
 13. Vacuum Forming PETE Packaging - Examination Question 
   
 14. Examination Question (Part One) - Injection Moulding  HIPS, HDPE, LDPE, PP, Acrylic (PMMA), ABS. 
 15. Examination Question (Part Two) - Injection Moulding HIPS, HDPE, LDPE, PP, Acrylic (PMMA), ABS. 
 16. Examination Question - Polypropylene Packaging 
   
 17. Low Density Polyethylene Questions 
 18.  LDPE and Extrusion Blow Moulding 
 19. Extrusion Blow Moulding - Question - 1 
 20. Extrusion Blow Moulding - Question - 2 
   
 20. Further Questions and Answers on Plastics 
   
 METALS 
   
 1. Iron Ore to Iron Ore Pellets 
 2. Where is Iron Ore Mined? 
 3. The Blast Furnace - Iron Production 
 4. Processes inside the Blast Furnace 
 5. Producing Steel through the Modern Converter Process 
   
   
 7. Alloys 
   
   
   
 10. Steel Bench - Examination Question 
 11. Steel Bench Construction - Examination Question 
 12. Ferrous and Non-Ferrous Metals Question 
 13. Metals and Properties Questions 
   
 COMPOSITE MATERIALS 
 1. Natural Woods 
 2. Concrete 
 3. Reinforced Concrete 
 4. Glass Reinforced Plastic 
 5. Carbon Fibre Reinforced Polymer (CFRP) 
 6. Examination Question - Carbon Fibre (CFRP) 
 7. Plywood 
 8. Laminated Veneers and Steam Bending 
   
 9. Kevlar - General Introduction 
 10. What is Kevlar? Types of Kevlar - Advantages and Disadvantages of Kevlar 
 PDF FILE - Click here for Printable Worksheet on Kevlar 
 11. Kevlar and Modern Cars 
 12. Automotive use of Kevlar - Summary 
   
 COMPLIANT MATERIALS 
 1. Compliant Materials - Examination Questions 
   
 GENERAL MATERIALS QUESTIONS 
 1. Materials, Metals and Polymers 1 
 2. Materials, Metals and Polymers 2 
   
 SMART MATERIALS 
   
   
   
   
   
   
   
 6. Inks That Change After Contact With Water 
 7. Inks that change Colour with Temperature 
 8. Photochromic Inks 
 9. Photochromic Inks - Examination Question 
 10. Hydromorphic Polymers 
 11. Hydrocarbon Encapsulating Polymers 
 12. Aroma Pigments 
 13. Further Questions and Answers on Smart Materials 
   
 14. GENERAL MATERIALS - Questions and Answers 
   
 MATERIALS - FINISHES 
   
 1. Materials - Finishes Questions / Answers 
 2. More Materials - Finishes Questions / Answers 
   
 MODEL / PROTOTYPE  -  MATERIALS AND MANUFACTURE 
   
 Making a Model - Introduction 
 Model Making - Tools and Equipment - 1 
 Model Making - Tools and Equipment - 2 
 Model Making - Tools and Equipment - 3 
 Model Making - Tools and Equipment - 4 
   
 Modelling Materials - 1 
 Modelling Materials - 2 
 Sample Models 
 Card Based Models 
 Architectural Models 
 Computer Generated Models 
 Computer Generated Systems Model (Spreadsheets) 
 Model Making Examination Question 
   
 PDF FILE - Modelling Questions - 1 
   
 
JOINTS
 
 

 
   
   
   
   
   
   
   
   
   
 

 
   
   
   
   
   
   
   
   
   
 
QUESTIONS - JOINTS
 
   
   
   
   
 
SCREWS AND GLUES
 
  
 
 
 
 
 
   
   
   
 HINGES 
   
 1. Types of Hinges 
   
 KNOCK DOWN FITTINGS 
   
 1. Knock-Down (K/D) Fittings 
 2. More Knock-Down (K/D) Fittings 
 3. The Table Plate 
   
 NUTS AND BOLTS 
   
 1. Bolts - Sheet 1 
 2. Bolts - Sheet 2 
   
 RIVETS 
   
 1. Pop Riveting 
 2. Cold Rivets - Types and General Use 
 3. Joining Plates with Rivets - 1 
 4. Joining Plates with Rivets - 2 
 5. Joining Plates with Rivets - 3 
   
 PDF FILE - CLICK HERE FOR PRINTABLE EXERCISE REGARDING COLD RIVETING 
   
 6. Rivets and Movement 
   
  
   
 FITTINGS FOR SHAFTS AND WHEELS 
   
 1. Push Fittings 
 2. Split Pins 
 3. Lock Nuts 
 4.Combination Lock Nut and Split Pin. 
 5. Fittings for Metal Tube Frames - 1 
 6. Fittings for Metal Tube - 2 
 7. Examination Question 
   
 BRAZING 
   
 1. The Brazing Hearth 
 2. A Brazed Joint 
   
   
 INDUSTRIAL PRODUCTION 
   
 1. The Client /Customer 
 2. What is a Production Line? 
 3. Introduction to Industrial Production Techniques 
 4. Scales of Production - an Introduction 
 5. Single Item / Prototype Production - Example 1 
 6. Single Item / Prototype Production - Example 2 
 7. Batch Production - Example 1 
 8. Batch Production - Example 2 
 9. Batch Production Exercise 
 10. Continuous Production - Example 1 
 11. Continuous Production - Example 2 
 12. Production Methods - Lesson Starter 
 13. Series of Examination Questions related to Mass Production in a School Workshop 
 14. CIM - Computer Integrated Manufacture - 1 
 15. CIM - Computer Integrated Manufacture - 2 
 16. Remote Manufacturing 
 17. Continuous Improvement (CI) - Page 1 
 18. Continuous Improvement (CI) - Page 2 
 20. Flexible Manufacturing Systems - FMS - 1 
 21. Flexible Manufacturing Systems - FMS - 2 
 22. Detailed Example of Flexible Manufacturing - CD / DVD Manufacture 
 23. The Role of Market Research 
 24. How Market Research can be Carried Out 
 25. Design Idea to Design Concept (including Market Research) 
 26. ICT as a Marketing Tool 
 27. Barcodes in Manufacturing, Distribution and Supply 
 PDF FILE - EXAMINATION QUESTION - ICT and Manufacturing, Marketing and Supply - Examination Question 
   
 28. Information Communication Technology - Developing and Modelling Ideas 
 
 29. Keeping a Manufacturing Logbook 
   
   
 QUALITY SYSTEMS 
   
 1. The British Standards Institute Kite Mark and the Conformite European Symbol 
   
 2. Quality Assurance 
 3. Quality Control 
 PDF FILE  - CLICK HERE FOR PRINTABLE WORKSHEET ON QUALITY CONTROL 
 4. Quality Control Exercise 
 5. Quality Control and Quality Assurance - Examination Questions and Answers 
 6. Products and Quality Standards - Examination Question 
 7. Product Analysis 
   
 8. Tolerances - 1 
 9. Tolerance - 2 
 PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEET ON TOLERANCES 
 10. Tolerance Examination Question 
   
 MANUFACTURING PROCESS - REDUCING WASTE 
   
 1. Manufacturing Products and Reducing Waste 
 2. Manufacturing Products and Reducing Waste - Using Accurate Templates 
 3. Dealing with Waste - Reuse / Recycle 
 4. Training / Educating Staff about the Importance of Reducing Waste 
   
   
 PROPERTIES OF MATERIALS 
   
 1. Properties of Materials - 1 
2.Properties of Materials - 2
 3. Properties of Materials - Questions 1 
 4. Properties of Materials - Questions 2 
   
   
 EXAMINATION QUESTIONS 
   
 1. Exam Question 1 
 2. Exam Question 2 
 3. Exam Question 3 
 4. Exam Question 4 
 5. Exam Question 5 
 6. Exam Question 6 
   
 AS / A2 LEVEL QUESTIONS 
1. Question 1 - Traditional Chair
 2. Question 1 - Modern Plastic Chair 
 3. Question 1 - Contemporary Wood/Metal Chair 
 4. Plastics - Monomers and Polymers 
   
 EXAMINATION PREPARATION THEMES 
   
 CHARLES RENNIE MACKINTOSH AND STORAGE 
   
 1. An Introduction to Charles Rennie Mackintosh 
 2. Analysis / Description of a Charles Mackintosh Chair 
 3. Mackintosh Decoration 
 4. The Furniture of Charles Rennie Mackintosh - Product Analysis 1 
 5. The Furniture of Charles Rennie Mackintosh - Product Analysis 2 
 6. Product Analysis - Mackintosh Oak Washstand 
 7. Product Comparison 
 8. The Mackintosh Desk 
 9. A Young Child's Toy Box based on Charles Rennie Mackintosh Design Characteristics 
 10. DVD Storage Unit based on Charles Rennie Mackintosh Design Characteristics 
 11. Storage Unit based on a Mackintosh White Desk and Chair 
 12. How to Develop a Specification by Analysing the Design Brief
for a Charles Mackintosh inspired Storage Unit
 
 13. Specification Question 
 14. Design One - Child's Toy Box - Mackintosh Style 
 15. Design Two - Storage Box - Mackintosh Style 
 16. Design Three - Jewellery Box - Mackintosh Style 
 17. Design Four - DVD Storage - Mackintosh Style 
 18. Design Five - Bits And Bobs Storage Box - Mackintosh Style 
 19. Designing a Mackintosh Storage Unit 
 20. Presenting a Design Idea 
 21. Developing your Idea 
   
 22. Part Two Examination Questions  
   
CONTEXTMP3 DOCKING STATION FOR THE TEENAGE MARKET
   
 Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
   
 STILL UNDER CONSTRUCTION 
   
 1. MP3 Rich Picture 
 2. Existing MP3 Player Docking Stations 
 3. MP3 Docking Station - Product Analysis Question 1 
 4. MP3 Docking Station - Product Analysis Question 2 
 5. How to Develop a Specification by Analysing the Design Brief 
 6. MP3 Docking Station - Ideas 
 7. Alternative Way of Presenting Ideas 
 8. Evaluating an Idea for an MP3 Docking Station 
 9. Developing Your Chosen Design 
 10. Manufacturing your chosen MP3 Docking Station  
 11. Manufacturing an Alternative Design through Injection Moulding 
   
 Further Examination Questions 
   
 1. Equipment and Tools - 1 
 Answers 
 2. Equipment and Tools - 2 
 Answers 
   
 3. Health and Safety - 1 
 4. Health and Safety Answer - 1 
   
 4. Health and Safety - 2 
 5. Health and Safety Answer - 2 
   
 6. Manufacturing a Product - 1 
 7. Manufacturing a Product -  Polyvinylchloride (PCV) - Answers 
 8. Manufacturing a Product  - Pine - Answers 
   
 8. Sequence of Manufacture - QUESTION - Pine Desk Tidy B 
 9. Sequence of Manufacture  - ANSWER - Pine Desk Tidy B 
   
 10. Manufacturing a Product - CAD and Injection Moulding 
 11. Manufacturing a Product _ CAD and Injection Moulding - ANSWER 
   
 12. Materials - 1 
 13. Materials - 2 
 14. Raw Materials to Manufactured Products - Crude Oil to Polystyrene 
 15. Raw Materials to Manufactured Product - Natural Wood to Guitar 
 16. Materials and Finishes 
   
 17. Product Analysis 
   
 18. What is Anthropometrics and Ergonomics? 
 19. Ergonomics and Anthropometrics (Feet)- 1 
 20. Ergonomics and Anthropometrics - Child's Walking Toy - 2 
   
 21. Why Make a Model? 
   
 22. Life Cycle - 1 
 23. Environmental Impact - Product Life Cycle 
 24. Environment/Recycling - 1 
 25. Environment/Recycling - 2 
   
 26. Maintenance of Products - Kettles 
 27. Maintenance of Product - Drills 
   


THEME: OFFICE FURNITURE AND RELATED EQUIPMENTCONTEXT: TABLE and DESKTOP ORGANISATION

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
   
 IMPORTANT - PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEETS 
 (Use this section of the site for possible answers) 
   
 1. Desk Top Organisation - Rich Picture 
 2. Product Analysis - 1 
 3. Product Analysis Exercise 
 4. Design Requirements 
 5. The Design Specification - Desk Top Organiser 
 6. Desk Organiser - Ergonomics. 
 7. Additional Resources You May Need 
   
 MANUFACTURING TECHNIQUE ONE 
 1. Manufacturing a Simple Desk Top Organiser - The Base 
 2. Manufacturing a Simple Desk Top Organiser - The Tubes 
   
 MANUFACTURING TECHNIQUE TWO 
 3. Injection Moulding 
   
 MANUFACTURING TECHNIQUES THREE 
 4. Line Bending / Strip Heater 
   
 EXAMINATION STYLE QUESTIONS 
   
 1. Questions - 1 
 2. Questions - 2 
 3. Questions - 3 
 4. Questions - 4 
 5. Questions - 5 
 6. Questions - 6 
 7. Questions - 7 
   
 ADDING ACCESSORIES 
 1. Adding a Sellotape Dispenser 
 2. Sellotape Dispenser Examination Question 1 
 3.Sellotape Dispenser Examination Question 3 
 4. Sellotape Dispenser Examination Question - 4 
   
 2. INDIVIDUAL RESEARCH THEME and EXAMINATION QUESTIONS
THEME: EDUCATIONAL TOYSCONTEXT: YOUNG CHILDREN LEARN THROUGH PLAY

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
 PDF FILE - CLICK HERE FOR PRINTABLE WORKSHEETS RELATING TO THE QUESTIONS BELOW 
   
   
 1. Rich Picture - Educational Toys 
 2. Product Analysis 
 3. Product Analysis (Toy) - Exercise 
 4. Educational Toys and Devices 
 5. Design Requirements - Educational Toy 
 6. The Design Specification - Educational Toy 
 7. Design Problem - Educational Toy 
 8. Further Explanation of Key Words /Phrases 
 9. Design Brief - Educational Toy 
 10. Educational Toy and Ergonomic Considerations 
 11.Educational Toy / Ergonomic Walking Toy 
   
 12. Symbols - Packaging- 1 
 13. Symbols - Packaging - 2 
 14. More Symbols and Questions 
 15. Safety Symbols - Lessons Starter 
 16. Toy Lessons Starter 
   
 17. Educational Jigsaw - 1 
 18. Educational Jigsaw - 2 
 19. Educational Jigsaw - 3 
   
 20. A Mechanical Toy 
 21. Another Mechanical Toy 
   
 22. Try the Mechanisms Index Page - CAMS and CAM Toys 
   
 23. Questions - 1 
 24. Questions - 2 
 25. Questions - 3 
 26. Questions - 4 
 27. Questions - 5 
   
 3. INDIVIDUAL RESEARCH THEME and EXAMINATION QUESTIONS
THEME: MEDIA STORAGECONTEXT: STORING DVDs, CDs AND COMPUTER GAMES

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
 1. Rich Picture - Media Storage 
 2. Product Analysis of a Typical Homemade DVD / CD Storage Unit 
 3. Product Analysis Exercise - DVD Storage Unit 
 4. Design Requirements 
 5. Design Specification - Media Storage 
 6. Design Problem - Media Storage 
 7. Design Brief - Media Storage 
 8. Ergonomics - Media Storage 
   
 9. Manufacturing a Basic DVD / CD Storage Unit - Single Item Manufacture - 1 
 10. Manufacturing a Basic DVD / CD Storage Unit - Single Item Manufacture - 2 
 11. Assembly - Single Item Manufacture - 3 
   
 12. Manufacturing a Basic DVD / CD Storage Unit - Batch Production 
 13. Plastics - Batch Production - Many Made 
 14. Production Flow Charts - Single Item and Batch Production 
   
 15. CIM - Computer Integrated Manufacture - 1 
 16. CIM - Computer Integrated Manufacture - 2 
   
 17. Manufacturing a Cabinet - DVD / CD Storage Unit - Material Pine 
 18. Flat Pack DVD / CD Storage Unit 
19. Free Gift - Glider - 1
20. Free Gift - Glider Manufacture
21. Modern Light Weight Modelling Materials
22. Making a Model Glider - By Hand
23. Flow Chart - Making a Model Glider By Hand
24. Examination Questions - 1
25. Examination Questions - 2
26. Examination Questions - 3
27. Examination Questions - 4
 28. Examination Questions - 5 
 29. Examination Questions - 6 
 30. Examination Questions - 7 
 31. Examination Questions - 8 
   
 SUGGESTED FURTHER REVISION 
   
 4. INDIVIDUAL RESEARCH THEME and EXAMINATION QUESTIONS
THEME: EATING OUTDOORSCONTEXT: PICNIC FURNITURE

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
 1. Rich Picture - Picnic Furniture 
 2. Product One - Wood Based - Teak 
 3. Product Analysis - A typical Folding Picnic Table 
   
 4. Manufacture of Folding Table 1 - Single Item/One off Production Sheet 1 
 5. Manufacture of Folding Table 1 - Single Item/One off Production Sheet 2 
 6. Folding Table - Manufacture of Brass Fittings / Hinge 
   
 7. Manufacture of Product One - Batch Production - CNC 1 
 8. Manufacture of Product One - Batch Production - CNC2 
 9. Production Flow Chart - CAD/CAM - Batch Production 
   
 10. Product Two - HDPE and Steel/Aluminium 
 11. Product Analysis - HDPE and Steel/Aluminium 
 12. Manufacturing Techniques - HDPE Table 
   
 13. Product Three - Teak Folding Chair 
 14. Properties of Teak 
   
 15. Product Four- HDPE Chair. 
 16. Properties of HDPE 
   
 17. Permanent Steel and Teak Bench 
   
 18. Design Requirements - Picnic Furniture 
 19. Design Specification - Picnic Furniture 
 20. Design Problem - Picnic Furniture 
 21. Design Brief - Picnic Furniture 
 22. Ergonomics and Picnic Furniture 
 23. Eco-Friendly Symbols - Furniture 
 24. Bicycle Rack 
   
 EXAM TYPE QUESTIONS 
   
 1. Examination Questions 1 
 2. Examination Questions - 2 
 3. Examination Questions - 3 
 4. Examination Questions - 4 
 5. Examination Questions - 5 
 6. Market Research Examination Questions 
 7. Quality Systems Questions 
   
   
 5. INDIVIDUAL RESEARCH THEME and EXAMINATION QUESTIONS
THEME: ENVIRONMENTCONTEXT: RECYCLING BINS

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
   
 1. Rich Picture - Environment and Recycling Bins 
 2. Product Analysis Exercise - 1 
 3. Product Analysis Exercise - 2 
 4. Product Analysis Exercise - 3 
 5. Product Analysis - Exercise - 4 
   
 6. Design Requirements 
 7. Design Specification 
 8. Design Problem Exercise 
 9. Design Brief Exercise 
   
 10. Examination Question 1 
 11. Examination Question 2 
   
 12. Pedal Mechanism - 1 
 13. Pedal Mechanism - 2 
 14. PDF FILE - EXAM QUESTION BASED ON BOTH MECHANISMS 
 15. Further Question on Pedal Bin Mechanisms 
   
 16. Stages in the Manufacture of the Wire Mechanism 
 17. Manufacturing Processes - Steel _ Pedal Bin 
   
 18. Bins with Wheels 
 19. Further Wheel Fittings 
   
20. Materials for the Manufacture of Recycling bins - 1
 21. Properties - High Density Polyethylene (HDPE) and Mild Steel 
   
 22. Ergonomics and Recycle Bins 
 23. How to Work Out an Ergonomic Measurement 
   
 24. Recycling Symbol - Vinyl Cutter 
 25. Recycling Symbols - Bins 
   
 BATCH PRODUCTION 
 26. Shopping Bag Recycling Bin - CAD/CAM 
 27. Production Flow Chart - CAD/CAM - Batch Production - Recycle Bin 
   
 SINGLE ITEM PRODUCTION 
 28. Manufacturing the Wood Recycle Bin - Single Item 
 29. Flow Chart of Manufacture - Single Item - Recycle Bin 
 30. Wood Bin - Examination Question 
   
 31. Other Aspects of Revision 
   
 6. INDIVIDUAL RESEARCH THEME and EXAMINATION QUESTIONS
THEME: PORTABILITYCONTEXT: Wheeled devices that help with moving and transporting a range of different items

Pupils research the theme as they work through the resources/questions below. They should draw on all the skills and techniques developed through the Resistant Materials course.

*PLEASE NOTE: You may need to use the search facility on the index page of this site to find information when answering some of the questions*
 
   
 1. Rich Picture - Wheeled Devices 
 2. Folding Trolley - Product Analysis One 
 3. Folding Trolley - Product Analysis Two 
 4. Folding Trolley - Product Analysis Three 
 5. Children's Building Block Trolley - Product Analysis 
   
 6. Product Comparison - Portability and Wheeled Devices 
 7. Materials Selection - Wood Based Trolley 
 8. Materials Selection - Metal Based Trolley 
   
 JOINTS AND FITTINGS FOR WOOD TROLLEYS 
 9. Wood Based Trolley - Joints and Fixings 
   
 FITTINGS - FIXING WHEELS TO TROLLEYS 
 10. Push Fittings 
 11. Split Pins 
 12. Lock Nuts 
 13.Combination Lock Nut and Split Pin. 
   
 FITTINGS AND JOINTS - METAL TUBE / TROLLEYS 
 14. Fittings for Metal Tube Frames - 1 
 15. Fittings for Metal Tube - 2 
 16. Examination Question 
   
 SCALES OF MANUFACTURE 
 17. Building Block (Wood Based) Trolley - One Off / Batch Manufacture 
 18. Updated Building Block Trolley 
   
 19. A Metal Trolley - Selection of Materials 
 20. Building a Steel/Aluminium Trolley - One Off and Batch Manufacture 
 21. The Hydraulic Press - Pressing Steel Sheet 
   
 ERGONOMICS AND SAFETY 
 22. Ergonomics of a Trolley 
 23. Health and Safety - Lifting and Moving Weights 
   

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