Unit 9: Mechanical Design
LO1: Be able to use graphical and engineering
drawing techniques to communicate design
solutions
Isometric Projections
Instructions and answers for teachers
These instructions should accompany the OCR resource ‘Isometric Projections’ activity which supports
Cambridge Technicals in Engineering Level 3.
The Activity:
This activity offers an
This activity offers an
opportunity for English
opportunity for maths
skills development.
skills development.
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Suggested
timings:
1–2 hours
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Activity 1:
Depending on the level of previous experience and confidence learners can be provided with a page of
isometric paper which when placed under a blank sheet can be used several times for tracing purposes.
A 30 degree set square can be used instead of isometric paper or as a next step after learners gain
confidence in isometric drawing techniques.
The link below contains an interesting short video on isometric drawing basics accompanied by links
containing some additional isometric drawing exercises and isometric paper templates:
http://www.ucl.ac.uk/drawing-gym/video/film-2-isometric-drawing/
Step by step solutions for question a) and b) can be found at:
a)
http://www.technologystudent.com/designpro/isocube1.htm
b)
http://www.technologystudent.com/designpro/isocube4.htm
In terms of question c) there is no particular solution presented as it follows the same step by step
pattern and questions a) and b).
Teachers could add further isometric drawing examples.
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Activity 2: Isometric Projection of a circle
Learners can use isometric paper or a 30 degree set square to assist with drawing of the isometric
projection of the circle.
A step by step procedure for drawing the circle is shown in the link below:
http://www.slideshare.net/teachmacao/isometric-circles-2
Teachers could develop further isometric drawing exercises for learners to practice the technique.
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