1. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales MMAN 1130 DESIGN AND MANUFACTURE CONCEPT GENERATION AND SKETCHING

2. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales School of Mechanical & Manufacturing Engineering The University of New South Wales Product Development Process MANUFACTURE Distribution Use & Service Disposal, Reuse, Recycling Product MANUFACURING OPERATIONS MANUFACTURING ORGANISATION External Feedback (Performance, DFE, etc. Internal Feedback (Cost, DFM, DFA, etc. MMAN1130 Project

3. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales School of Mechanical & Manufacturing Engineering The University of New South Wales SOLO Pump Project Functional Specification Concept Sketch Engineering Drawings Production Plan Prototype Manufacturing

4. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Functional Specification Categorisation of Functional Specification Market Search Initial Concept Sketch Concept Sketch Evaluation Final Concept Sketch Problem Formulation

5. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales …..the best way to get an idea is to get a lot of ideas……. Linus Pauling (1901 – 1994)

6. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching An outline of possible solution based on Product Design/Functional Specification (PDS) Splits the problem up into smaller categories Two stages: Concept generation (individual work) Concept evaluation (group work)

7. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Concept Generation Research into the similar products in the market place Develop ideas which will meet PDS Key points in order to communicate ideas

8. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching PDS Evaluation Matrix List of important features required from a product Appearance, Competition, Customer, Documentation, Ergonomics, Environment, Installation, Product disposal, Lead times, Legal and safety implications, Legislation, Patents and copyright, Maintenance, Materials Packaging and transport, Performance Processes, Product cost, Product dimensions, Product life, Quality, Quantity, Standards, Testing AppearanceCompetition, Customer, Documentation, ErgonomicsEnvironment Installation, Product disposal, Lead times, Legal and safety implications, Legislation, Patents and copyright, Maintenance, Materials Packaging and transportPerformance Processes, Product cost, Product dimensions, Product life, Quality, Quantity, Standards, Testing

9. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching PDS Evaluation Matrix Feature Categories Product Features Concept 1Concept 2Concept 3 Performance Lower a load of 2.5 tonnes Draw in a cable at a rate of 0.25 m/s Dimensions Envelop dimensions (H, W) Cost End user cost < $5000 Manufacturing cost < $2500 Standards AS5000 part 99 Motor performance AS6105 for insulation Product Life On the market for 10 years Spare parts for further 5 years Which ones are important for representing PDS???????

10. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Use a suitable Concept Sketching Techniques Is 2D sketch enough ? Do you need 3D sketch? Do you need auxiliary views? e.g. sectional views

11. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Use a suitable Concept Sketching Techniques Oblique Crudest and rarely used Look very unconvincing to the eye Easy to learn Not really a '3D' system but a 2 dimensional view of an object with 'forced depth‘ Drawn in two dimensions, i.e. flat. The other sides are drawn in at 45 degrees but instead of drawing the sides full size they are only drawn with half the depth creating 'forced depth' adding an element of realism to the object.

12. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Use a suitable Concept Sketching Techniques Isometric constructing a 3 dimensional object without using perspective all lengths drawn at 30 degrees using their true length

13. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Use a suitable Concept Sketching Techniques Axonometric Interior designer, landscapers Drawing a plan view with a third dimension Plan view at a 45 degree angle with the depth added vertically

14. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Generation and Sketching Use a suitable Concept Sketching Techniques Perspective Three main system One, Two and Three point

15. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Putting things together Functional Specification Categorisation of Functional Specification Market Search Initial Concept Sketch Concept Sketch Evaluation Final Concept Sketch Problem Formulation Detail Design

16. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Putting things together: Bicycle Case Problem Statement: Designing an off-road bike for semi-professional market for pleasure and racing use

17. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Putting things together: Bicycle Case PDS / Functional Specification Dimensions Envelop dimensions of 1.5mX1m Environment Mainly used as an off-road bike Performance Adjustable frame to suit for different market segments Should be less than 10kg Capable of carrying up to 100kg Cost End user cost less than $1000 Manufacturing cost less than $500 Maintenance To be maintenance free except for light lubrication once a month and a recommended service every two years. Parts requiring lubrication should be accessible within 15 minutes without the use of special tools or equipment. All fasteners used should comply with AS6105. Spares should be available for 5 years after the product is replaced with a new model. No special tools should be required for maintenance.

18. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Putting things together: Bicycle Case Research into other products in the market

19. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Putting things together: Bicycle Case PDS evaluation Matrix Feature CategoriesProduct FeaturesConcept 1Concept 2 Performance Should be < 10kg Carrying up to 100kg Adjustable frame Dimensions Envelop dimensions 1.5x1m Cost End user cost < $1000 Manufacturing cost < $500 Environment Off-road as a dirt bike Maintenance Maintenance free except for light lubrication once a month and a recommended service every two years. Parts requiring lubrication should be accessible within 1 min without the use of special tools or equipment. All fasteners used should comply with AS6105. No special tools should be required for maintenance.

20. MMAN1130 – Design and Manufacture by S. Kara School of Mechanical & Manufacturing Engineering The University of New South Wales Concept Sketch Submission Due Week 3, in Monday class Check Moodle Sketch Guide Concept sketch assessment guides