Cams, gears and pulleys
A collection of resources for GCSE Design and Technology that support the teaching of rotary systems (I.e. Cams and followers, gears and pulleys).
Links and Resources
This collection of classroom presentations, student worksheets and student revision activities support the teaching of:
- types of motion (I.e. reciprocating, oscillating, linear, rotary)
- gears (I.e. bevel, idler, gear trains
- levers (I.e. first order, second order, third order) and linkages (I.e. push / pull)
- cams and followers (I.e. eccentric, snail, oval)
This resource provides step-by-step instructions on how Fusion 360 can be used to create a cam and follower, including basic rendering and movement of the cam and follow components around an axle.
This resource from Boxford provides CAD files for the manufacture of a teaching aid for mechanisms. It includes photographs of the final product and CAD drawings of the component parts used, for manufacture by hand or laser cutter.
Produced by the Technology Enhancement programme (TEP), these materials help students to understand, design and prototype mechanisms (including levers, gears and linkages). The resource also supports students to work through some of the mathematical concepts involved in calculating gear ratio.
Students are challenged to make a series of mechanisms to meet specific design briefs:
- 'easy open' jar clamp
- pantograph engraver
- stone tumbling machine
- picture frame clamp
- wire frame automaton
Study files are also included and these allow students to research and practice important techniques and topics. The areas covered include: design, researching mechanical systems (including four bar linkage, cam and cam follower, crank-slider, friction, stiffness, electric motors, smart wire.
n this resource students are asked to test the operation of pulley systems and calculating their mechanical advantage. Suggested learning outcomes include:
- To understand what is meant by mechanical advantage.
- To be able to calculate the mechanical advantage of pulley systems.
- To perform suitable tests on how a pulley system functions.
This resource investigates modelling and constructing pulley systems designed to lift loads. Suggested learning outcomes include:
- To be able to recognise and describe the main parts of a pulley system.
- To understand how a pulley system can reduce the effort needed to lift a load.
- To model and construct different types of pulley systems.
|Subject(s)||Mechanisms and structures, Design and technology|
|Tags||cams, gears, follower, pulleys, gear ratio|
|Last updated||27 August 2019|
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