Y10 Revision. For everything you can check out www.technologystudent.com
Adhesives
Adhesives or ‘glues’ are used for joining similar and dissimilar materials together to manufacture artefacts and
goods. The process of ‘gluing’ two or more components or parts together is known as ‘bonding.’
Adhesives can be used to bond Wood, Metal and Plastics together but the correct adhesive has to be carefully
selected for each application.
Name
Material
Use
PVA
Wood
Gives a strong Joint
Cascamite
Wood
Waterproof gives a strong joint
Contact Adhesive
Wood, Metal, Plastic
Good for sticking plastic to wood
Epoxy Resin
Wood, Metal, Plastic
A two part adhesive, waterproof and very strong.
Liquid Solvent
Cement
Thermoplastics
Waterproof comes in cement
liquid form, applied by brush.
Superglue
(Cyanocrylate)
Wood, Metal, plastics, ceramics
Waterproof comes in liquid or gel form, applied direct.
In particular, PVA…
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Gives a strong Joint.
Is in liquid form and can be applied straight from the bottle or with a brush.
It dries clear – does not stain.
Easy to clean up with water/wet cloth.
Non toxic.
But….
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Must be held exactly in place whilst it dries.
It can show through varnish.
Ergonomics and Anthropometric Data
Ergonomics is the relationship between people and the products which they use. Anthropometric data is used to
help design products to meet ergonomic needs. Ergonomics also considers the force a person can apply, for example
when using a tin opener, or the pedals of a car.
Ergonomics This is the study of man and how he interacts with the environment around him. It is looking at the
environment and adapting buildings, tools, machines and furniture so that people can operate at maximum
efficiency.
Anthropometrics This is described as the measurement of the human body – how tall, how wide, what weight, how
big are the hands, feet etc.
Anthropometrics is the study of the sizes of people in relation to products. For example, chairs used in schools need
to be suitable for the average size of pupils in the schools.
For the Exam… Make sure that you can adapt a product to make it fit the human hand better using sketches and
notes – remember our example of those “leaf paddles”.
Design Process
Design Brief: A clear statement of the problem to be solved or the task to be done. May contain some parameters.
Design Specification: A list of requirements of what the product should be designed to be or do – form and function.
Be able to give examples of requirements and reasons, especially for jewellery boxes. Eg – REQUIREMENT : to keep
small items of jewellery locate safely in one place. REASON : small items of jewellery can be easily dropped and lost
if left out.
Design Ideas: Clearly show ideas and concepts using sketches (2D & 3D) and annotation.
Detailed Design: how will the product be constructed? What materials and components will be used? How will it be
finished (paint, varnish, oil, lacquer etc)? What dimensions? Again use sketches and detailed annotation.
Evaluation: how good is the design? Compare it to the design brief and specification.
Jewellery Boxes.
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What do they store?
How big are they?
What could they look like?
How are they made?
How would you make one?
What materials could be used? (I suggest wood).
Can you show a jewellery box design by sketching and adding notes. Can you write down the process of
making a jewellery box?
Charles Rennie Mackintosh.
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Use of geometric design
Japanese influence
Floral/rose design
How did he design/make jewellery boxes?
How are other jewellery boxes designed and made in the style of Charles Rennie Mackintosh.
Look at lots of CRM pictures and practise drawing his designs.
Materials.
Basic info about wood and metal from your notebooks. Some questions about the lathe.
Wood.
Hardwood – deciduous trees, 100 years to fully grow, more expensive. Eg. Oak, ash, elm, sycamore
Softwood – evergreen/conifers, 30 years to fully grow, cheaper. Eg. Pine, red deal, cedar.
Manufactured Board – MDF, plywood, blockboard, chipboard, hardboard, veneer.
Joining wood – how would you go about making a box using a simple finger joint?
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What tools would you use?
How would you check for “square-ness”?
How would you clean up the finished joint?
Metal.
Ferrous – contains Iron. Mild Steel, Stainless steel, cast iron, Tool steel.
Non – ferrous – does not contain iron. Aluminium, brass, bronze, copper.
Joining metal –mechanical. Nuts & bolts, self-tapping screw, pop rivet, brass/aluminium rivet using a rivet set.
Joining Metal – Permanent. Welding (mig/arc/gas), Brazing, Soldering.
Define CAD – computer aided design
CAM - – computer aided manufacture.
Useful Websites.
www.technologystudent.com
www.bbc.co.uk/education
When BBC bitewise has opened follow the path GCSE—Design and Technology—Resistant Materials.