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TRANSCRIPT
TECHNICALSCambridge
CAMBRIDGE TECHNICALS IN ENGINEERINGLEVEL 3 UNIT 9 – MECHANICAL DESIGN
RESOURCES LINKVersion 1
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Introduction
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Contents
Orthographic projection (third angle) 4
Isometric projection 5
Oblique projection 6
Freehand sketching 7
Perspective (one and two point) 8
Freehand sketching 9
Presenting design ideas 10
Thick and thin line technique 11
Sketching, shading and rendering 12
Sketching worksheet 13
Formal engineering drawing 14
Drawing symbols 15
Tolerances, limits and fits 16
Surface texture (surface finish / surface roughness) 17
Standard components 18
Assembly drawing 19
Mechanisms 20
Reverse engineering 21
Materials selection for engineering design 22
Materials Selection 23
Matweb – materials properties database 24
Manufacturing processes 25
Design for Manufacturing and Assembly (DFMA) 26
DFMA – case studies 27
Life Cycle Analysis (LCA) 28
Life Cycle Analysis (LCA) 29
Design optimisation – case study 30
Design optimisation using Excel 31
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Orthographic projection (third angle)
Description:An explanation, with examples, of third angle projection.
Supports:OCR Cambridge Technicals in Engineering Unit 9
Cost:Free
Format:Web page
http://www.technologystudent.com/designpro/orthogrp1.html
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Isometric projection
Description:An explanation of how to draw using isometric projection.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.technologystudent.com/designpro/isomet1.htm
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Oblique projection
Description:An explanation of how to draw using oblique projection.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.technologystudent.com/despro2/obli1.htm
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Freehand sketching
Description:Slide presentation which explains the basic skills of producing projections using freehand sketching.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.slideshare.net/vino1393/engineering-graphics-free-hand-sketch
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Perspective (one and two point)
Description:A video explaining how to freehand sketch using one and two point perspective.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Video
http://www.youtube.com/watch?v=felys-u4nfk
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Freehand sketching
Description:Book extract which provides and introduction to producing freehand sketches.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:PDF
http://ef.engr.utk.edu/ef101-2002/as/book/as_chap3.pdf
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Presenting design ideas
Description:Suggestions for how to present design ideas using annotated sketches.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.technologystudent.com/despro_flsh/desidea1.html
Resources LinkTECHNICALSCambridge
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Thick and thin line technique
Description:A video explaining how to sketch and draw using the thick and thin line technique.
Supports:OCR Cambridge Technicals in Engineering Level 3Unit 3
Cost:Free
Format:Web page
http://www.teachertube.com/video/thick-thin-line-technique-215023
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Sketching, shading and rendering
Description:Comprehensive series of videos illustrating sketching, shading and rendering techniques. Includes worksheets. Note: movies are in .mov format and require suitable video player such as Apple Quicktime.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://web.mit.edu/2.009/www/resources/sketchingTutorials.html
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Sketching worksheet
Description:A printable worksheet activity for drawing and rendering. Could be used by teachers as the basis for a classroom activity.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:PDF
http://www.esherdt.co.uk/images/Year%207%20GR%20HW3.pdf
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Description:A comprehensive introduction to formal engineering drawing, including projections, drawing layout, use of lines and lettering, adding dimensions, sectioning and tolerances/limits and fits. Document also includes exercise activities.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:PDF
http://wikieducator.org/images/9/9c/FT101.pdf
Formal engineering drawing
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Description:Series of examples of symbols that are used on formal engineering drawings. Includes tables of standard drawing symbols. See also: http://www.roymech.co.uk/Useful_Tables/Drawing/Drawing.html
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.roymech.co.uk/Useful_Tables/Drawing/fastening.html
Drawing symbols
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Description:Website explaining tolerances, limits and fits. Also shows how these are represented on engineering drawings.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.advice-manufacturing.com/Limits-Fits-and-Tolerances.html
Tolerances, limits and fits
Resources LinkTECHNICALSCambridge
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Description:A comprehensive article explaining the background behind surface texture and how it is influenced by the manufacturing (machining) process. Shows how surface texture is indicated on formal engineering drawings.
Supports:OCR Cambridge Technicals in Engineering Level 3Unit 9
Cost:Free
Format:PDF
http://www.hexagondesign.net/images/pdf/surface_roughness_jigar_talati.pdf
Surface texture (surface finish / surface roughness)
Resources LinkTECHNICALSCambridge
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Standard components
Description:Examples of how standard components can be represented on an engineering drawing. The example shows how to represent standard screw threads.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.engineeringessentials.com/ege/fast/fast_page5.htm
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Assembly drawing
Description:An introduction to producing assembly drawings.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.engineeringessentials.com/ege/assem/assem_page1.htm
Resources LinkTECHNICALSCambridge
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Mechanisms
Description:A video tutorial showing how to draw simple mechanisms using the locus of a point.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Video
http://www.youtube.com/watch?v=-bsJiAejcx0
Resources LinkTECHNICALSCambridge
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Reverse engineering
Description:An explanation of the term ‘reverse engineering’ and how and why it is used in the design of new products.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.npd-solutions.com/reoverview.html
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Materials selection for engineering design
Description:A Powerpoint presentation illustrating the reasons for selection of materials and manufacturing processes in engineering design. Includes a case study of a bicycle.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:PowerPoint presentation
http://www.materials.ac.uk/resources/fe/materialsselection.ppt
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Materials Selection
Description:Book by Michael Ashby covering the selection of materials in engineering design. Also includes a methodical approach to materials selection.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:£32.39
Format:Paperback book
http://www.amazon.co.uk/Materials-Selection-Mechanical-Design-Michael/dp/1856176630/ref=sr_1_1?ie=UTF8&qid=1439220566&sr=8-1
Resources LinkTECHNICALSCambridge
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Matweb – materials properties database
Description:A comprehensive database covering properties of a wide range of materials.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.matweb.com/index.aspx
Resources LinkTECHNICALSCambridge
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Manufacturing processes
Description:Book by Rob Thompson covering a wide range of manufacturing processes used by design professionals.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:£37.70
Format:Hardcover book
http://www.amazon.co.uk/Manufacturing-Processes-Design-Professionals-Thompson/dp/0500513759
Resources LinkTECHNICALSCambridge
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Design for Manufacturing and Assembly (DFMA)
Description:An introduction to the fundamental principles of DFMA.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.engineeringexchange.com/profiles/blogs/11-principles-and-guidelines-in-design-for-manufacturing-and
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DFMA – case studies
Description:A number of DFMA case studies that could be used as the basis for lesson discussion.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.dfma.com/resources/studies.htm
Resources LinkTECHNICALSCambridge
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Life Cycle Analysis (LCA)
Description:A basic introduction to the lifecycle of a product.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.technologystudent.com/prddes1/lifecy1.html
Resources LinkTECHNICALSCambridge
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Life Cycle Analysis (LCA)
Description:A series of lesson plans and worksheets looking at LCA with practical examples for learners to undertake. Explains how LCA begins with the design of products.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://www.powerhousemuseum.com/ecologic/resources/lesson-plans-worksheets/lesson-plan-product-life-cycle-analysis/#worksheet
Resources LinkTECHNICALSCambridge
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Design optimisation – case study
Description:A case study of how design optimisation has been used to reduce the weight of a helicopter.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Web page
http://altairenlighten.com/2012/12/reducing-helicopter-weight-through-design-optimization/
Resources LinkTECHNICALSCambridge
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Design optimisation using Excel
Description:An example of how to use Excel to optimise a design using Solver.
Supports:OCR Cambridge Technicals in EngineeringUnit 9
Cost:Free
Format:Video
http://www.youtube.com/watch?v=BZmSH8Y8_fc
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