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Hinging up!

Hinging up!

Andy Green looks at methods for hinging control surfaces - 27/3/12

Eric Bray02/11/2009 22:48:16
6600 forum posts
2 photos
A bit of a first for me - asking a construction question!
I'm putting my CMP Discus together, and have met a minor hitch, sort of.
The destructions call for the rudder to be hinged by the supplied 'hairy mylar' discs, and direct that epoxy be used to stick them.
Now, I've never used these things before, so is epoxy best, or would thin cyano wick into the tight slots better?
Logic says cyano.
Over to you!
Andy Harris02/11/2009 22:49:29
464 forum posts
30 photos
Eric - cyano !
Andy Gates02/11/2009 22:53:23
636 forum posts
19 photos
I totally agree with Andy, cyano is the stuff to use with furry hinges.
As of yet I have never had one fail..........god help me now!
Eric Bray02/11/2009 23:30:53
6600 forum posts
2 photos
Cyano it will be. I'll have to nip out and get a tube tomorrow, as the one I have has gone all crunchy!
Martin Harris02/11/2009 23:40:19
8963 forum posts
221 photos
Tube?  Which type are you planning to use? 
I always use the very thin type so that it "wicks" in by capillary action...I've only seen it in bottles but you may have a different source/terminology?
ken anderson.03/11/2009 07:40:19
8480 forum posts
773 photos
hinges---after a lifetime of modelling i made my first silicone hinge two weeks ago--after watching one of my friends glider pull high G stuff with them in it---i decided to give it a go......dead easy-no fiddling on with mylar/cyno ect and really strong(amazed) and no gap..............
ken anderson......
Pat (rActive) Harbord03/11/2009 08:52:26
634 forum posts
49 photos
Yes silicone hinges on my epp wing are fab. Definately worth considering. I think Andy Ellison did a how to a few issues back.
Bob Cotsford03/11/2009 11:17:15
8065 forum posts
444 photos
I used Evo-stick hinges on my MiniBongo, twelve months on they're still holding together despite some rough treatment.
Cyano tubes - sounds like Eric is off to Poundsavers, I really rate their cyano, the stuff in tubes seems a little thicker than their bottles, either way £1 for 10 2gm tubes or 5(?) 10g bottles is good value.  It's holding all the hinges in my Enya 60 powered Katana 46 with no problem.
andy watson03/11/2009 11:43:07
1942 forum posts
20 photos
Flexible hinges- cyano.
Robart hinges- epoxy.
I tend to use Robarts for almost everything now.  I'm not exactly sure why, as they are fiddly to apply, more expensive, and the others have never let me down.  I just like them.
Doug Ireland03/11/2009 11:54:49
2088 forum posts
42 photos
I'm with you on this one Andy although I use a proprietary hinge glue that has a very fine nozzle.

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