This pack includes 5 extension springs
Electronic wire which can expand or contract, ideal for smart textiles and model-making projects.
On passing a current through the muscle wire the composition of the wire changes which makes it contract. This movement can be increased by the use of levers etc to produce moving parts within models.
Muscle wire (also known as smart wire and nitinol wire) with crimped copper ring terminals
Fitted copper ring terminals make model making simple
Wires can easily be soldered on to the copper ring terminals
Muscle wire can be repeatedly used
Movement can also be controlled using a 555 timer circuit with a supply voltage of 4.5V, this allows the correct 3V to operate the muscle wire
Movement can also be controlled using PIC chips to activate and de-activate the muscle wire using the correct 3V supply.