I just got a CG Extreme 330. The instructions are like 7 pages long and leave much to the imagination. This is my first model that used CA hinges instead of hardware.

They are not attatched to the wings or the control surfaces and slide freely in either. So do I glue them centered to one side first and then insert the hinges in the wing? Or do I try to center them as I insert the control surfaces into the wings and then do both sides at once? How do I keep them from getting pushed more on one side than the other and what is the proper way to glue them?

Also, how does it flex if it's got CA all over the hing?

Thanks in advance.

Hi Kodack,

Theres nothing much to it. Just cut a loose slot for the hinge, fix both sides (stab & Elev for example) so that the hing is centered (pushing a thin pin thru the centre of the hinge is a good way of ensuring its centered when u fix it), and drop 5-6 drops of thin ca at the hinge point (both top and bottom). CA hardening the hinge is not really a problem, at least I have not faced it. I usually flex the hinge as soon as I drop the CA. But u should make sure that the CA wicks well into the slot on both sides and the best way to do that is hold the structure horizontal and have a loose fit on the hinge or drill a hole in the centre of the slot so CA has a path to wick into.

Hope this helps

basically I do the same except I use 12 to 15 drops of fresh thin CA,also flex the control past where you will ever need it before gluing,give the glue time to dry before flexing the hinge,might be pulling it loose at the wood

Instead of putting the pin in the centre of the hinge, you can also use a red colored pencil and draw a line on it, this way you can visualize where the hinge is at. I have always been wary of putting a hole in a CA hinge.

Also check this for a RC Universe 'How-To' column on CA hinges:

http://www.rcuniverse.com/reviews.ph...ew&reviewid=55

Instead of putting the pin in the centre of the hinge, you can also use a red colored pencil and draw a line on it, this way you can visualize where the hinge is at. I have always been wary of putting a hole in a CA hinge.


The problem with a colored line is that if the hinge is tight in one of the slots, its difficult to centre it, a pin locks it in place. I usually use a thin pin so I dont create a 'hole' in the hinge.