Jonathan Brooks Posted September 17, 2008 Share Posted September 17, 2008 Hello A tip i have just discovered. Finishing off a small electric which has thin Z bend piano wire control rods to the ailerons. A bit fiddly for my thumbs and couldnt get a slop free fit between the servo arm and the control arm - just a little but enough to cause a flutter (the Z was too big (crap pliers) and moved up and down and back to front in the servo control arm)..The answer - an elastic band round the top of the servo arm (hooking under the piano wire) and back round the aileron control horn again hooking under the piano wire at the other end. Result! no slop and doesnt affect the movement of the control. If this is a time honoured bodge I apologise but new to me.mb Quote Link to comment Share on other sites More sharing options...
Sloper Posted September 24, 2008 Share Posted September 24, 2008 I seem to always have the opposite trouble; that is, the pushrods (M2) are too tight in the servo arms and I have to drill the holes a little bigger (std and mini servos). This has often puzzled me before.. how come the holes in the arms are so small? Are they this size to fit the pins of clevises? Quote Link to comment Share on other sites More sharing options...
Doug Ireland Posted September 24, 2008 Share Posted September 24, 2008 Simple answer, don't use "Z" bends! I hate 'em and never use 'em! Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted September 24, 2008 Share Posted September 24, 2008 I find most clevis pins are also larger than the servo arm and give a stiff connection if the arm isn't relieved. The only time I've found the holes too big was on an indoor model with a pushrod made of something like 18swg wire. Quote Link to comment Share on other sites More sharing options...
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