Just read the sticky about hinges and proper install. Says to push hinge into surface to the pin then put the corresponding part opposite then add drops of thin Ca.

1. The hinges won't move when placing the other surfacer on opposite side?

2. Just a few drops at the drilled hole or run a line across the hinge also?

Will be watching for some good comments here. I know if one hinge gets off a little a binding will be the result and this scares the heck out of me. lol

gphil

gphil, I dont do mine exactly as stated above. But there is not a binding issue. When you flex the surface for the first time after gluing. That line will the hinge line. No matter the oriantation of the actual hinge. CA hanges can bind but this would be a result of them not being in line along the length. If that makes sense. I have not read the sticky you are talking about. But the most omportant step is to flex the surface while holding the gap tight before glueing. CA hinges will last a long time if they are not being pulled.


david

Thanks Dave,  

Do you run a bead or just spot at the little hole?   Sticky is at the beginning here   I think.   gphil

You pin the hinge and insert it, then the other side, then pull the pin and flex.

A few drops on each side. If when you say hole you mean the type with a slot in the center, put a few drops on each side where the actual hinge material is.

Don't reglue once the wet CA has wicked in.

Gorilla glue works better but you need to buy some hinges and find some scrap wood and get the hang of it or it will ooze out and gum up the works, with gorilla glue you can do one side at a time.

As I recall that sticky was put there by Mike or Ken and they drilled a hole into the slots center? I do it that way too. I use the small tips that are an inch or two in length on my thin CA bottle and put the tip into the hole and add a bit of pressure on the bottle to get the CA to flow a little and as I draw out the tip I glue the slot too. Done correctly the CA hinge is as good as any as long as the slot is a little snug. If your hinge isn't exactly straight it doesn't create a problem.

I was more worried about the alighnment etc.  Not to mention the time factor.   I just know you had better have things straight or you may be cutting the hinges off.   I guess cut the slots, install the hinges , fiber , pin and put the two surfaces together and then glue, hold for twenty seconds or so and either high five it or scream.   lol  gphil

If you are worried about alignment - use two pins.  It really isn't that critical.  Many .40 size models only have a 1/4" of solid trailing edge on the wing, anyway.  The hinge is protruding inside the wing void.

Just be sure you bend the surface to max throw before you glue. As far as the amount of glue. I use 4 drops on each side. Two on the aile side and two on the wing side. Then flip it over and use 4 more. Use gravity to your advantage also. Have the aile down when glueing that side and the wing down when glueing the other.
There is also a difference in hinges from brand to brand. I like the Great Planes hinges. They are a little thicker than some others and have a lot of the "hair" for lack of a better word on the surface of them. The Radio South ones for example are smooth on both sides. Not knocking them, I just like the rougher surface of the GP.


David

Here is a good video of what you need to do. A video is worth a thousand words.

http://www.youtube.com/watch?v=QpwEvmhpAjY

That vid was invaluable, taught a lot and just good to see.    Now here is another one to sling out.   Story of my life.   The supplied hinges are slotted which makes putting a pin in the middle impossible.  Maybe two pins each hinge?   Yup I am a problem child but still love it.   gphil

Yes. There is nothing wrong with using two pins on the desired hingeline of CA hinges to index the hinge properly between the two surfaces. In fact when I do use pins for indexing I use two anyway to prevent the hinge going at a poor angle which happens often when a single pin on the hingline is used. There are also round cut CA hinges out there and these of course a single pin does the job nicely

I do not use the pins every time and often you can just control any slippage just by how you squeeze the first surface as the second surface is being slipped on. Its a feel thing.

John

Let me throw in two cents here and suggest clearing the covering well away from the hinge slot before gluing. If it's been mentioned before I apologize. I have had the glue run off the covering, instead of wicking into the slot, makes a mess and sours my otherwise sunny disposition.