Need help with nitinol motor Bribe offered

HI All. I am developing a motor using super elastic nitinol wire and have problems. Picture at:
http://www.pacificsites.com/~snyder/motor.jpg The most
frustrating problem is joining the wire together. I bought some tiny stainless steel tubing from Ebay. The idea is to use this as a sleeve and solder/braze it together. It hasn't arrived yet. I have been unable to find small high pressure crimp fittings. The second problem is the wire slipping on the pulleys. I will send anyone coming up with a solution to either of these problems a piece of wire to play with, assuming it is something I can use. Wire description at: http://www.pacificsites.com/~snyder/Ebay/Flexinol%20Test%20Data.htm This wire has a transition temp ~100C. This helps resolving the cooling side. The heating side can be easily insulated with cheap materials(styrofoam). I am hoping to put this on a bicycle and operate with solar power. Any comment/suggestions are welcome. Thanks in advance. Larry
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On Fri, 4 Jul 2008 12:49:37 -0700, "Larry Snyder"

Greetings Larry, I would spot weld the wires together inside the sleeves instead of soldering them. You can buy stainless tubing already cut into short lengths at a sporting goods store. Cripmers too. The sleeves are for making up stainless steel leaders. I made up an emergency throttle cable for a car broken down on the side of the road out of some 50 lb. test ss leader and a couple crimps. The fix was appropriate too as the car was one of those "boat cars" that were made in the late 50's or early 60's. Cheers, eric
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wrote:

Hi eric. Spot welding in tube is great idea. Also sleeves from sporting good store. Please send me your mailing address and I'll send wire monday. Thanks. Larry
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HI All. I posted this on several newsgroups and got a lot of responses. I would like to thank everyone for their input. The answers that I like are: capstain/multiple turns around pulleys use tubing for guide and spot weld grooving pulleys for more surface area crimp fittings from fishing supply store idlers/belts to apply extra pressure on pulleys Answers I didn't like: coating pulleys with nonslip stuff- wire pressure too great. will fail too fast. I have notified people with the above ideas and will offer wire only for some other ideas. Thanks for your interest. Larry
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 The most

I was looking for information on soldering Nickel, and ran across a reference to using phosphoric acid flux to solder stainless. Has anyone used any phosphoric acid flux?
Dan
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On Fri, 4 Jul 2008 12:49:37 -0700, "Larry Snyder"

To All, When Larry Snyder made the above post I responded with a suggestion that he apparently found useful and true to his word I recieved in the mail yesterday what looks to be about 25 feet of nitinol wire. Thanks Larry! Cheers, Eric
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snipped-for-privacy@whidbey.com wrote:

You did good! SmallParts sells it in 1, 3, & 6' lengths: http://www.smallparts.com/products/descriptions/NW.cfm 25' is a real score. Bob
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