Specialist Techniques And Processes
Overzicht
Two students make the same box. One cuts all the parts, sands them, applies two coats of lacquer, and then discovers that the joints will not close because the lacquer has built up inside them. The other cuts the parts, dry assembles them, fits the lid to the box rather than to a number, glues up, and finishes last, masking the joint surfaces beforehand. Neither is more skilful. One of them wrote down the order of operations before starting.
This is the making topic. It asks how to select and use specialist techniques and processes appropriate for the material and the task, and to use them to the required level of accuracy in order to complete quality outcomes; how to use them safely to shape, fabricate and construct a high quality prototype, including wastage, addition and shaping; and how to prepare a material for a treatment or finish and apply an appropriate one. The specialist technical principles told you what the processes and finishes are; this topic is about carrying them out on the one object you are actually making. It is designing and making principles content, examined in Section C of Paper 1, and it is the topic criterion E of the design and make task, worth 30 marks, is written around.
Doelstellingen
- How to select and use specialist techniques and processes appropriate for the material and/or task and use them to the required level of accuracy in order to complete quality outcomes. How to use them safely to shape, fabricate and construct a high quality prototype, including techniques such as wastage, addition and shaping.
- Surface treatments and finishes
- Students should know and understand that surface treatments and finishes are applied for functional and aesthetic purposes. How to prepare a material for a treatment or finish. How to apply an appropriate surface treatment or finish.
Mindmap
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Lesevaluatie
Gefeliciteerd met het voltooien van de les op Specialist Techniques And Processes. Nu je de sleutelconcepten en ideeën, het is tijd om uw kennis op de proef te stellen. Deze sectie biedt een verscheidenheid aan oefeningen vragen die bedoeld zijn om uw begrip te vergroten en u te helpen uw begrip van de stof te peilen.
Je zult een mix van vraagtypen tegenkomen, waaronder meerkeuzevragen, korte antwoordvragen en essayvragen. Elke vraag is zorgvuldig samengesteld om verschillende aspecten van je kennis en kritisch denkvermogen te beoordelen.
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- Line bending an acrylic sheet on a strip heater belongs to which family of processes? A. Addition B. Casting C. Shaping D. Wastage Answer: C
- Why should a box carcase be dry assembled before it is glued? A. To let the adhesive dry faster B. To check it is square and every joint closes while changes are still possible C. To remove the need for cramps D. To apply the finish more evenly Answer: B
- Which surfaces should be finished before a carcase is assembled? A. All of them B. None of them C. The glue surfaces D. Those that will be inaccessible afterwards Answer: D
- A lid must match a box exactly. The best method for a one-off is to A. make both to the dimensions on the drawing. B. make the box and then fit the lid to it. C. make the lid first and then the box. D. specify a tighter tolerance on both. Answer: B
- Why is a glue surface masked before a finish is applied? A. To keep it clean for handling B. Because a finish on it will stop the joint bonding C. To make the finish dry more quickly D. Because adhesive dissolves the finish Answer: B
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