Hello -
This makes me wonder if "muscle wire" could be used by one of us to achieve the same result.
Shape memory alloy
http://en.wikipedia.org/wiki/Shape_memory_alloy
Muscle Wire & SMAs
http://www.robotstore.com/store/default.asp?catid=1533
Muscle Wire Kits
http://www.elexp.com/kit_2mt3.htm
Ooooooooooo, who needs Detroit, I just found the springs! :
NiTi Springs - Tension - $41.95
http://www.robotstore.com/store/prod...=85&catid=1570
Quote:
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Tension - When cool, can be extended to 14cm. Heated, contracts to 29mm overall. With 350 gram hanging mass shrinks from 60mm long coil (cool) to 30mm long (heated) with 2 Amps. 6mm coil, 750 µm wire, activates at 45-55°C. Four pieces per pack. Use several in series for greater distance, or in parallel for greater force.
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Man, this is giving me Spring Fever!!!!!!!!!!
Spring Fever
no_springs.jpg
CarloSW2