Using a range of techniques to complete final idea

Design and technology

... controlled, appealing and persuasive.

The design criteria says the picture must be ...

To convince someone to do or believe something through reasoning or temptation.

To give extra information about a mechanism.

What do you add to the design to ensure your levers are controlled in movement?

What mechanisms are being used to make the picture move?

A detailed design including measurements and mechanisms.

Linkage is a rigid bar which moves around a pivot

Linkage is the fixed point which a lever moves around.

Linkages are card strips joining one or more levers to produce the required type of movement.

When a diagram is split into different parts to show how something is put together.