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

"Larry Snyder" wrote in message

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

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