What is muscle wire ?
Muscle wire, also known as smart wire, more commonly known as nitinol or smart wire, which is the name for very high performance, shape memory alloy, actuator wires. It is made of nickel-titanium.
What can muscle wire be used for ? Muscle wire can be used in electronics, cars, medical and in smart materials. Muscle wire 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 using levers to produce moving parts within models.
Light Stitches muscle wire has fitted crimped copper ring terminals to make model making simple. The wires can easily be soldered on to the copper ring terminals. Muscle wire can be repeatedly used. Approximate diameter 0.015 mm.
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.
This muscle wire is is especially made for Light Stitches in the USA.
Images show the muscle wire variations and the type of model that could be made.