Design and Technology KS2: How to create a working drawbridge

Presenters Lauren Layfield and Joe Tracini and The Dengineers team help brothers Alec and William from Inverness create a castle-themed den.

They investigate one the main features of the den, a working drawbridge. To open and close the drawbridge they use a chain and barrel mechanism and demonstrate how the barrel winds the chain up and down to move the drawbridge.

Teacher Notes

This could be used to introduce the process of design, and as a prompt for class discussion and learning in areas such as initial research, designing and making a structure.

They could investigate the barrel and chain mechanism and how it could be used to operate different devices.

Curriculum Notes

This clip will be relevant for teaching Design and Technology at KS2 in England, Wales, and Northern Ireland and 1st and 2nd level in Scotland.

More from the series The Dengineers

How fibreglass can be used to make solid structures
video
How do sliding doors work?
video
How to create a structure with angled walls
video
How to create a ventilation system
video
What is a pitched roof?
video
How to create a magnetic marble-run wall
video
How to create a structure with a rotating roof
video
How is dry ice created?
video
How to create a secure swing seat
video
How to make a wheelchair accessible zip wire
video
How to create an eco-friendly water wheel
video