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Key Stage 3. A Suggested Year 8/9 Project. Mechanisms. A Pull-a-Long Toy ‘Freddie’ the Frog. RA Moffatt WELB. A Pull-a-Long Toy ‘Freddie’ the Frog. RA Moffatt WELB. A Mechanical Toy Design. Learning Opportunities: To introduce pupils to basic mechanisms / mechanical - PowerPoint PPT Presentation
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Key Stage 3
A Pull-a-Long Toy
‘Freddie’ the Frog
A Suggested Year 8/9 Project
RA Moffatt WELB
A Pull-a-Long Toy‘Freddie’ the Frog
RA Moffatt WELB
A Mechanical Toy Design
Learning Opportunities:
To introduce pupils to basic mechanisms / mechanical movement – cams / eccentricity;
To develop basic design and manufacturing skills;
Design Appreciation: to understand that changes could bemade to the design and to develop an awareness of the constraints when manufacturing.
To develop an understanding of a range of manufacture processes;
To introduce basic engineering concepts – fiction,Interference / clearance-fit, eccentricity, etc.
Activity Description:
Theory Mechanical Systems: : The pupils study mechanisms for approximately 3 x 35min periods;
Manufacture: To manufacture a number of the models parts from set working drawings;
Design Opportunities:
a) Show using concept sketches five alternative designs for the frog’s body;
b) Explain using graphics the mechanical solution for making thetoy move up and down include notes / annotation;
c) Show using graphics how a cam may be fitted to make the head move up and down (reciprocate motion);
d) Show examples of where an interference-fit and a clearance-fitis used in this project;
e) Name two suitable materials for the body and wheels of this toy design?
f) State a suitable protective finish for this project?
A Mechanical Toy Design
Concept sketches
Key Stage 3
A Pull-a-Long Toy‘Freddie’ the Frog
A Suggested Year 8/9 Project
RA Moffatt WELB
A Mechanical Toy Design
Learning Opportunities:
To introduce pupils to basic mechanisms and mechanical movement - cams, & linkages;
To develop basic manufacturing skills and techniques;
To develop a range of design and manufacture skills;
To understanding a basic product specification;
To be able to interpret a working drawing.
Activity Description:
Theory: The pupils study mechanisms for approximately 3 x 35min periods
Manufacture: To manufacture a number of the models parts from set working drawings.
Design Appreciation: to discuss alternative modifications tothe toy design / reverse engineering
Alternative Pull-Long-Toy Design
Alternative Pull-Long-Toy Design
Alternative Pull-Long-Toy Design
