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Old 12-24-2007, 04:19 AM   #3 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
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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:
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.
Man, this is giving me Spring Fever!!!!!!!!!!

Spring Fever

Click image for larger version

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CarloSW2
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