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what do you use for clevises

R/C Submarine modelers

Postby 99-1045850132 » Wed Mar 05, 2003 7:23 pm

Hi guys, I just wanted to know what all you are using for clevises to attach control rods to servos. I am using 1/8" rod, and all the clevises I have are for either 2/56 or 4/40 threads. These do not go on to the 1/8th inch rod. Sure am open to suggestions. TIA c.j.g.
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Postby Art Broder » Wed Mar 05, 2003 7:48 pm

:O Carlosjose,
You can slightly grind down the diameter of the end of the 1/8" rod, and put a 4/40 thread on with a 4/40 die. Then you can attach the 4/40 clevis of your choice.
Alternatively, you could attach 4/40 threaded rod to the end of your 1/8" smooth rod by soldering brass tubing over the smooth rod end, and inserting and soldering the threaded rod into the tube end. Hope this helps.
Art
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Postby Britt Boyette » Thu Mar 06, 2003 11:21 am

If you do this tip with the tubing that Art is talking about, remember to drill a small vent hole in your tubing at the mid point. Otherwise, the heat and gases generated by the torch will make it difficult to hold all the work together. It becomes a small hydrolic piston.



Edited By Britt Boyette on 1046964118
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Postby 99-1045850132 » Thu Mar 06, 2003 4:50 pm

Thanks for the two tips on the clevises. My mind just does not work at times. :) c.j.g.
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Postby U-Boater » Sat Mar 08, 2003 9:50 am

Hello Carlos, Another method is not to use a clevis period. It is possible to use a cycle spoke. The tit end goes thru the nylon servo arm ( sometimes this takes a little heat if the hole in the servo arm is to small) the spoke is cut to the desired length and the other end is held to the pushrod with a brass collar. The brass collar can be taken out of a domestic electrical connector. You end up with an adjustable in length pushrod. this method is cheap and reliable.hope this idea helps.........regards u-boater :laugh:
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